Home / 129,024,000.10-193,536,000.15-72,282,931.30

Finding the Fourth Proportional to 129,024,000.10, 193,536,000.15 and 72,282,931.30

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Solution

The fourth proportional to 129,024,000.10, 193,536,000.15 and 72,282,931.30 is: 108,424,396.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,000.10 : 193,536,000.15 = 72,282,931.30 : x
  2. Step 2: Convert to fraction form
    129,024,000.10/193,536,000.15 = 72,282,931.30/x
  3. Step 3: Cross multiply
    129,024,000.10x = 193,536,000.15 × 72,282,931.30
  4. Step 4: Simplify right side
    129,024,000.10x = 13,989,349,402,919,240
  5. Step 5: Solve for x
    x = 13,989,349,402,919,240/129,024,000.10
  6. Step 6: Final answer
    x = 108,424,396.95

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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.