Home / 145,155,965.40-217,733,948.10-130,375,344.60

Finding the Fourth Proportional to 145,155,965.40, 217,733,948.10 and 130,375,344.60

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Solution

The fourth proportional to 145,155,965.40, 217,733,948.10 and 130,375,344.60 is: 195,563,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,155,965.40 : 217,733,948.10 = 130,375,344.60 : x
  2. Step 2: Convert to fraction form
    145,155,965.40/217,733,948.10 = 130,375,344.60/x
  3. Step 3: Cross multiply
    145,155,965.40x = 217,733,948.10 × 130,375,344.60
  4. Step 4: Simplify right side
    145,155,965.40x = 28,387,138,514,656,012
  5. Step 5: Solve for x
    x = 28,387,138,514,656,012/145,155,965.40
  6. Step 6: Final answer
    x = 195,563,016.90

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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.