Home / 143,145,613.20-214,781,405.40-66,429,152.40

Finding the Fourth Proportional to 143,145,613.20, 214,781,405.40 and 66,429,152.40

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Solution

The fourth proportional to 143,145,613.20, 214,781,405.40 and 66,429,152.40 is: 99,672,958.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,145,613.20 : 214,781,405.40 = 66,429,152.40 : x
  2. Step 2: Convert to fraction form
    143,145,613.20/214,781,405.40 = 66,429,152.40/x
  3. Step 3: Cross multiply
    143,145,613.20x = 214,781,405.40 × 66,429,152.40
  4. Step 4: Simplify right side
    143,145,613.20x = 14,267,746,712,002,784
  5. Step 5: Solve for x
    x = 14,267,746,712,002,784/143,145,613.20
  6. Step 6: Final answer
    x = 99,672,958.14

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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.