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Finding the Fourth Proportional to 11,313,572.43, 15,616,019.88 and 7,393,918.20

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Solution

The fourth proportional to 11,313,572.43, 15,616,019.88 and 7,393,918.20 is: 10,205,757.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,313,572.43 : 15,616,019.88 = 7,393,918.20 : x
  2. Step 2: Convert to fraction form
    11,313,572.43/15,616,019.88 = 7,393,918.20/x
  3. Step 3: Cross multiply
    11,313,572.43x = 15,616,019.88 × 7,393,918.20
  4. Step 4: Simplify right side
    11,313,572.43x = 115,463,573,602,293.83
  5. Step 5: Solve for x
    x = 115,463,573,602,293.83/11,313,572.43
  6. Step 6: Final answer
    x = 10,205,757.23

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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.