Home / 1,311,916,572.38-1,810,466,379.03-783,326,749.70

Finding the Fourth Proportional to 1,311,916,572.38, 1,810,466,379.03 and 783,326,749.70

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Solution

The fourth proportional to 1,311,916,572.38, 1,810,466,379.03 and 783,326,749.70 is: 1,081,003,757.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,916,572.38 : 1,810,466,379.03 = 783,326,749.70 : x
  2. Step 2: Convert to fraction form
    1,311,916,572.38/1,810,466,379.03 = 783,326,749.70/x
  3. Step 3: Cross multiply
    1,311,916,572.38x = 1,810,466,379.03 × 783,326,749.70
  4. Step 4: Simplify right side
    1,311,916,572.38x = 1,418,186,744,117,645,824
  5. Step 5: Solve for x
    x = 1,418,186,744,117,645,824/1,311,916,572.38
  6. Step 6: Final answer
    x = 1,081,003,757.39

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Half scale
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Double scale
Find fourth proportional to 1,311,916,573.38, 1,810,466,380.41 and 783,326,750.70
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.