Home / 72,771,164.10-109,156,746.15-21,646,539.90

Finding the Fourth Proportional to 72,771,164.10, 109,156,746.15 and 21,646,539.90

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Solution

The fourth proportional to 72,771,164.10, 109,156,746.15 and 21,646,539.90 is: 32,469,809.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,164.10 : 109,156,746.15 = 21,646,539.90 : x
  2. Step 2: Convert to fraction form
    72,771,164.10/109,156,746.15 = 21,646,539.90/x
  3. Step 3: Cross multiply
    72,771,164.10x = 109,156,746.15 × 21,646,539.90
  4. Step 4: Simplify right side
    72,771,164.10x = 2,362,865,860,890,146.50
  5. Step 5: Solve for x
    x = 2,362,865,860,890,146.50/72,771,164.10
  6. Step 6: Final answer
    x = 32,469,809.85

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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.