Home / 156,081,248.30-215,405,349.63-86,488,458.86

Finding the Fourth Proportional to 156,081,248.30, 215,405,349.63 and 86,488,458.86

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Solution

The fourth proportional to 156,081,248.30, 215,405,349.63 and 86,488,458.86 is: 119,361,402.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,081,248.30 : 215,405,349.63 = 86,488,458.86 : x
  2. Step 2: Convert to fraction form
    156,081,248.30/215,405,349.63 = 86,488,458.86/x
  3. Step 3: Cross multiply
    156,081,248.30x = 215,405,349.63 × 86,488,458.86
  4. Step 4: Simplify right side
    156,081,248.30x = 18,630,076,719,698,172
  5. Step 5: Solve for x
    x = 18,630,076,719,698,172/156,081,248.30
  6. Step 6: Final answer
    x = 119,361,402.62

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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.