Home / 156,081,240.86-215,405,339.36-86,488,451.42

Finding the Fourth Proportional to 156,081,240.86, 215,405,339.36 and 86,488,451.42

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Solution

The fourth proportional to 156,081,240.86, 215,405,339.36 and 86,488,451.42 is: 119,361,392.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,081,240.86 : 215,405,339.36 = 86,488,451.42 : x
  2. Step 2: Convert to fraction form
    156,081,240.86/215,405,339.36 = 86,488,451.42/x
  3. Step 3: Cross multiply
    156,081,240.86x = 215,405,339.36 × 86,488,451.42
  4. Step 4: Simplify right side
    156,081,240.86x = 18,630,074,228,845,976
  5. Step 5: Solve for x
    x = 18,630,074,228,845,976/156,081,240.86
  6. Step 6: Final answer
    x = 119,361,392.35

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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.