Home / 129,024,136.60-193,536,204.90-77,963,810.20

Finding the Fourth Proportional to 129,024,136.60, 193,536,204.90 and 77,963,810.20

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Solution

The fourth proportional to 129,024,136.60, 193,536,204.90 and 77,963,810.20 is: 116,945,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024,136.60 : 193,536,204.90 = 77,963,810.20 : x
  2. Step 2: Convert to fraction form
    129,024,136.60/193,536,204.90 = 77,963,810.20/x
  3. Step 3: Cross multiply
    129,024,136.60x = 193,536,204.90 × 77,963,810.20
  4. Step 4: Simplify right side
    129,024,136.60x = 15,088,819,945,651,912
  5. Step 5: Solve for x
    x = 15,088,819,945,651,912/129,024,136.60
  6. Step 6: Final answer
    x = 116,945,715.30

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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.