Home / 145,203,254.40-217,175,025.60-129,960,739.20

Finding the Fourth Proportional to 145,203,254.40, 217,175,025.60 and 129,960,739.20

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Solution

The fourth proportional to 145,203,254.40, 217,175,025.60 and 129,960,739.20 is: 194,377,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,203,254.40 : 217,175,025.60 = 129,960,739.20 : x
  2. Step 2: Convert to fraction form
    145,203,254.40/217,175,025.60 = 129,960,739.20/x
  3. Step 3: Cross multiply
    145,203,254.40x = 217,175,025.60 × 129,960,739.20
  4. Step 4: Simplify right side
    145,203,254.40x = 28,224,226,862,754,924
  5. Step 5: Solve for x
    x = 28,224,226,862,754,924/145,203,254.40
  6. Step 6: Final answer
    x = 194,377,371.08

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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.