Home / 123,784,991.60-170,815,800.12-68,778,967.28

Finding the Fourth Proportional to 123,784,991.60, 170,815,800.12 and 68,778,967.28

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Solution

The fourth proportional to 123,784,991.60, 170,815,800.12 and 68,778,967.28 is: 94,910,814.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,784,991.60 : 170,815,800.12 = 68,778,967.28 : x
  2. Step 2: Convert to fraction form
    123,784,991.60/170,815,800.12 = 68,778,967.28/x
  3. Step 3: Cross multiply
    123,784,991.60x = 170,815,800.12 × 68,778,967.28
  4. Step 4: Simplify right side
    123,784,991.60x = 11,748,534,327,360,500
  5. Step 5: Solve for x
    x = 11,748,534,327,360,500/123,784,991.60
  6. Step 6: Final answer
    x = 94,910,814.11

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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.