Home / 99,291,932.70-148,937,899.05-68,680,931.10

Finding the Fourth Proportional to 99,291,932.70, 148,937,899.05 and 68,680,931.10

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Solution

The fourth proportional to 99,291,932.70, 148,937,899.05 and 68,680,931.10 is: 103,021,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291,932.70 : 148,937,899.05 = 68,680,931.10 : x
  2. Step 2: Convert to fraction form
    99,291,932.70/148,937,899.05 = 68,680,931.10/x
  3. Step 3: Cross multiply
    99,291,932.70x = 148,937,899.05 × 68,680,931.10
  4. Step 4: Simplify right side
    99,291,932.70x = 10,229,193,582,831,806
  5. Step 5: Solve for x
    x = 10,229,193,582,831,806/99,291,932.70
  6. Step 6: Final answer
    x = 103,021,396.65

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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.