Home / 156,081,247.86-215,405,349.06-86,488,458.42

Finding the Fourth Proportional to 156,081,247.86, 215,405,349.06 and 86,488,458.42

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Solution

The fourth proportional to 156,081,247.86, 215,405,349.06 and 86,488,458.42 is: 119,361,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,081,247.86 : 215,405,349.06 = 86,488,458.42 : x
  2. Step 2: Convert to fraction form
    156,081,247.86/215,405,349.06 = 86,488,458.42/x
  3. Step 3: Cross multiply
    156,081,247.86x = 215,405,349.06 × 86,488,458.42
  4. Step 4: Simplify right side
    156,081,247.86x = 18,630,076,575,621,396
  5. Step 5: Solve for x
    x = 18,630,076,575,621,396/156,081,247.86
  6. Step 6: Final answer
    x = 119,361,402.03

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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.