Home / 129,648,487.36-194,143,627.68-77,800,492.48

Finding the Fourth Proportional to 129,648,487.36, 194,143,627.68 and 77,800,492.48

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Solution

The fourth proportional to 129,648,487.36, 194,143,627.68 and 77,800,492.48 is: 116,503,247.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,648,487.36 : 194,143,627.68 = 77,800,492.48 : x
  2. Step 2: Convert to fraction form
    129,648,487.36/194,143,627.68 = 77,800,492.48/x
  3. Step 3: Cross multiply
    129,648,487.36x = 194,143,627.68 × 77,800,492.48
  4. Step 4: Simplify right side
    129,648,487.36x = 15,104,469,845,357,762
  5. Step 5: Solve for x
    x = 15,104,469,845,357,762/129,648,487.36
  6. Step 6: Final answer
    x = 116,503,247.77

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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.