Home / 13,705,909.39-18,914,177.19-7,509,971.53

Finding the Fourth Proportional to 13,705,909.39, 18,914,177.19 and 7,509,971.53

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Solution

The fourth proportional to 13,705,909.39, 18,914,177.19 and 7,509,971.53 is: 10,363,772.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705,909.39 : 18,914,177.19 = 7,509,971.53 : x
  2. Step 2: Convert to fraction form
    13,705,909.39/18,914,177.19 = 7,509,971.53/x
  3. Step 3: Cross multiply
    13,705,909.39x = 18,914,177.19 × 7,509,971.53
  4. Step 4: Simplify right side
    13,705,909.39x = 142,044,932,210,275.41
  5. Step 5: Solve for x
    x = 142,044,932,210,275.41/13,705,909.39
  6. Step 6: Final answer
    x = 10,363,772.89

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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.