Home / 29,121,987.90-40,196,337.03-16,902,781.50

Finding the Fourth Proportional to 29,121,987.90, 40,196,337.03 and 16,902,781.50

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Solution

The fourth proportional to 29,121,987.90, 40,196,337.03 and 16,902,781.50 is: 23,330,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,121,987.90 : 40,196,337.03 = 16,902,781.50 : x
  2. Step 2: Convert to fraction form
    29,121,987.90/40,196,337.03 = 16,902,781.50/x
  3. Step 3: Cross multiply
    29,121,987.90x = 40,196,337.03 × 16,902,781.50
  4. Step 4: Simplify right side
    29,121,987.90x = 679,429,901,918,449
  5. Step 5: Solve for x
    x = 679,429,901,918,449/29,121,987.90
  6. Step 6: Final answer
    x = 23,330,478.13

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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.