Home / 156,255,479.04-215,612,741.52-85,672,514.64

Finding the Fourth Proportional to 156,255,479.04, 215,612,741.52 and 85,672,514.64

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Solution

The fourth proportional to 156,255,479.04, 215,612,741.52 and 85,672,514.64 is: 118,217,203.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,255,479.04 : 215,612,741.52 = 85,672,514.64 : x
  2. Step 2: Convert to fraction form
    156,255,479.04/215,612,741.52 = 85,672,514.64/x
  3. Step 3: Cross multiply
    156,255,479.04x = 215,612,741.52 × 85,672,514.64
  4. Step 4: Simplify right side
    156,255,479.04x = 18,472,085,754,442,736
  5. Step 5: Solve for x
    x = 18,472,085,754,442,736/156,255,479.04
  6. Step 6: Final answer
    x = 118,217,203.44

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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.