Home / 129,025,643.70-193,538,465.55-97,175,147.70

Finding the Fourth Proportional to 129,025,643.70, 193,538,465.55 and 97,175,147.70

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Solution

The fourth proportional to 129,025,643.70, 193,538,465.55 and 97,175,147.70 is: 145,762,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,025,643.70 : 193,538,465.55 = 97,175,147.70 : x
  2. Step 2: Convert to fraction form
    129,025,643.70/193,538,465.55 = 97,175,147.70/x
  3. Step 3: Cross multiply
    129,025,643.70x = 193,538,465.55 × 97,175,147.70
  4. Step 4: Simplify right side
    129,025,643.70x = 18,807,128,975,452,612
  5. Step 5: Solve for x
    x = 18,807,128,975,452,612/129,025,643.70
  6. Step 6: Final answer
    x = 145,762,721.55

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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.