Home / 129,039,752.80-193,559,629.20-64,542,498.40

Finding the Fourth Proportional to 129,039,752.80, 193,559,629.20 and 64,542,498.40

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Solution

The fourth proportional to 129,039,752.80, 193,559,629.20 and 64,542,498.40 is: 96,813,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,039,752.80 : 193,559,629.20 = 64,542,498.40 : x
  2. Step 2: Convert to fraction form
    129,039,752.80/193,559,629.20 = 64,542,498.40/x
  3. Step 3: Cross multiply
    129,039,752.80x = 193,559,629.20 × 64,542,498.40
  4. Step 4: Simplify right side
    129,039,752.80x = 12,492,822,057,945,592
  5. Step 5: Solve for x
    x = 12,492,822,057,945,592/129,039,752.80
  6. Step 6: Final answer
    x = 96,813,747.60

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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.