Home / 76,591,808.10-114,887,712.15-72,812,672.10

Finding the Fourth Proportional to 76,591,808.10, 114,887,712.15 and 72,812,672.10

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Solution

The fourth proportional to 76,591,808.10, 114,887,712.15 and 72,812,672.10 is: 109,219,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,591,808.10 : 114,887,712.15 = 72,812,672.10 : x
  2. Step 2: Convert to fraction form
    76,591,808.10/114,887,712.15 = 72,812,672.10/x
  3. Step 3: Cross multiply
    76,591,808.10x = 114,887,712.15 × 72,812,672.10
  4. Step 4: Simplify right side
    76,591,808.10x = 8,365,281,313,097,136
  5. Step 5: Solve for x
    x = 8,365,281,313,097,136/76,591,808.10
  6. Step 6: Final answer
    x = 109,219,008.15

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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.