Home / 156,081,251.36-215,405,353.89-86,488,461.92

Finding the Fourth Proportional to 156,081,251.36, 215,405,353.89 and 86,488,461.92

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Solution

The fourth proportional to 156,081,251.36, 215,405,353.89 and 86,488,461.92 is: 119,361,406.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,081,251.36 : 215,405,353.89 = 86,488,461.92 : x
  2. Step 2: Convert to fraction form
    156,081,251.36/215,405,353.89 = 86,488,461.92/x
  3. Step 3: Cross multiply
    156,081,251.36x = 215,405,353.89 × 86,488,461.92
  4. Step 4: Simplify right side
    156,081,251.36x = 18,630,077,747,817,900
  5. Step 5: Solve for x
    x = 18,630,077,747,817,900/156,081,251.36
  6. Step 6: Final answer
    x = 119,361,406.86

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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.