Home / 156,047,002.57-215,344,859.64-86,436,867.49

Finding the Fourth Proportional to 156,047,002.57, 215,344,859.64 and 86,436,867.49

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Solution

The fourth proportional to 156,047,002.57, 215,344,859.64 and 86,436,867.49 is: 119,282,874.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,047,002.57 : 215,344,859.64 = 86,436,867.49 : x
  2. Step 2: Convert to fraction form
    156,047,002.57/215,344,859.64 = 86,436,867.49/x
  3. Step 3: Cross multiply
    156,047,002.57x = 215,344,859.64 × 86,436,867.49
  4. Step 4: Simplify right side
    156,047,002.57x = 18,613,735,097,355,328
  5. Step 5: Solve for x
    x = 18,613,735,097,355,328/156,047,002.57
  6. Step 6: Final answer
    x = 119,282,874.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.