Home / 145,542,711.10-218,314,066.65-133,638,432.70

Finding the Fourth Proportional to 145,542,711.10, 218,314,066.65 and 133,638,432.70

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Solution

The fourth proportional to 145,542,711.10, 218,314,066.65 and 133,638,432.70 is: 200,457,649.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,542,711.10 : 218,314,066.65 = 133,638,432.70 : x
  2. Step 2: Convert to fraction form
    145,542,711.10/218,314,066.65 = 133,638,432.70/x
  3. Step 3: Cross multiply
    145,542,711.10x = 218,314,066.65 × 133,638,432.70
  4. Step 4: Simplify right side
    145,542,711.10x = 29,175,149,703,469,340
  5. Step 5: Solve for x
    x = 29,175,149,703,469,340/145,542,711.10
  6. Step 6: Final answer
    x = 200,457,649.05

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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.