Home / 1,020,550,187.21-1,529,581,620.85-528,992,456.45

Finding the Fourth Proportional to 1,020,550,187.21, 1,529,581,620.85 and 528,992,456.45

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Solution

The fourth proportional to 1,020,550,187.21, 1,529,581,620.85 and 528,992,456.45 is: 792,844,045.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,550,187.21 : 1,529,581,620.85 = 528,992,456.45 : x
  2. Step 2: Convert to fraction form
    1,020,550,187.21/1,529,581,620.85 = 528,992,456.45/x
  3. Step 3: Cross multiply
    1,020,550,187.21x = 1,529,581,620.85 × 528,992,456.45
  4. Step 4: Simplify right side
    1,020,550,187.21x = 809,137,138,945,243,648
  5. Step 5: Solve for x
    x = 809,137,138,945,243,648/1,020,550,187.21
  6. Step 6: Final answer
    x = 792,844,045.39

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.