Home / 1,378,314,471.41-1,902,234,776.48-783,688,052.06

Finding the Fourth Proportional to 1,378,314,471.41, 1,902,234,776.48 and 783,688,052.06

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Solution

The fourth proportional to 1,378,314,471.41, 1,902,234,776.48 and 783,688,052.06 is: 1,081,580,943.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,314,471.41 : 1,902,234,776.48 = 783,688,052.06 : x
  2. Step 2: Convert to fraction form
    1,378,314,471.41/1,902,234,776.48 = 783,688,052.06/x
  3. Step 3: Cross multiply
    1,378,314,471.41x = 1,902,234,776.48 × 783,688,052.06
  4. Step 4: Simplify right side
    1,378,314,471.41x = 1,490,758,666,540,400,640
  5. Step 5: Solve for x
    x = 1,490,758,666,540,400,640/1,378,314,471.41
  6. Step 6: Final answer
    x = 1,081,580,943.58

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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.