Home / 79,715,301.40-119,572,952.10-72,912,856.60

Finding the Fourth Proportional to 79,715,301.40, 119,572,952.10 and 72,912,856.60

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Solution

The fourth proportional to 79,715,301.40, 119,572,952.10 and 72,912,856.60 is: 109,369,284.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,715,301.40 : 119,572,952.10 = 72,912,856.60 : x
  2. Step 2: Convert to fraction form
    79,715,301.40/119,572,952.10 = 72,912,856.60/x
  3. Step 3: Cross multiply
    79,715,301.40x = 119,572,952.10 × 72,912,856.60
  4. Step 4: Simplify right side
    79,715,301.40x = 8,718,405,509,705,968
  5. Step 5: Solve for x
    x = 8,718,405,509,705,968/79,715,301.40
  6. Step 6: Final answer
    x = 109,369,284.90

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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.