Home / 78,630,306.10-117,945,459.15-74,151,330.10

Finding the Fourth Proportional to 78,630,306.10, 117,945,459.15 and 74,151,330.10

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Solution

The fourth proportional to 78,630,306.10, 117,945,459.15 and 74,151,330.10 is: 111,226,995.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,630,306.10 : 117,945,459.15 = 74,151,330.10 : x
  2. Step 2: Convert to fraction form
    78,630,306.10/117,945,459.15 = 74,151,330.10/x
  3. Step 3: Cross multiply
    78,630,306.10x = 117,945,459.15 × 74,151,330.10
  4. Step 4: Simplify right side
    78,630,306.10x = 8,745,812,675,227,715
  5. Step 5: Solve for x
    x = 8,745,812,675,227,715/78,630,306.10
  6. Step 6: Final answer
    x = 111,226,995.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.