Home / 371,947,731.36-557,899,009.92-138,733,487.16

Finding the Fourth Proportional to 371,947,731.36, 557,899,009.92 and 138,733,487.16

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Solution

The fourth proportional to 371,947,731.36, 557,899,009.92 and 138,733,487.16 is: 208,091,805.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,947,731.36 : 557,899,009.92 = 138,733,487.16 : x
  2. Step 2: Convert to fraction form
    371,947,731.36/557,899,009.92 = 138,733,487.16/x
  3. Step 3: Cross multiply
    371,947,731.36x = 557,899,009.92 × 138,733,487.16
  4. Step 4: Simplify right side
    371,947,731.36x = 77,399,275,129,313,024
  5. Step 5: Solve for x
    x = 77,399,275,129,313,024/371,947,731.36
  6. Step 6: Final answer
    x = 208,091,805.93

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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.