Home / 15,513,569.55-21,407,886.36-8,542,884.71

Finding the Fourth Proportional to 15,513,569.55, 21,407,886.36 and 8,542,884.71

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Solution

The fourth proportional to 15,513,569.55, 21,407,886.36 and 8,542,884.71 is: 11,788,718.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,513,569.55 : 21,407,886.36 = 8,542,884.71 : x
  2. Step 2: Convert to fraction form
    15,513,569.55/21,407,886.36 = 8,542,884.71/x
  3. Step 3: Cross multiply
    15,513,569.55x = 21,407,886.36 × 8,542,884.71
  4. Step 4: Simplify right side
    15,513,569.55x = 182,885,105,111,781.28
  5. Step 5: Solve for x
    x = 182,885,105,111,781.28/15,513,569.55
  6. Step 6: Final answer
    x = 11,788,718.55

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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.