Home / 156,959,279.93-216,602,087.35-86,393,381.44

Finding the Fourth Proportional to 156,959,279.93, 216,602,087.35 and 86,393,381.44

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Solution

The fourth proportional to 156,959,279.93, 216,602,087.35 and 86,393,381.44 is: 119,221,920.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,959,279.93 : 216,602,087.35 = 86,393,381.44 : x
  2. Step 2: Convert to fraction form
    156,959,279.93/216,602,087.35 = 86,393,381.44/x
  3. Step 3: Cross multiply
    156,959,279.93x = 216,602,087.35 × 86,393,381.44
  4. Step 4: Simplify right side
    156,959,279.93x = 18,712,986,753,128,748
  5. Step 5: Solve for x
    x = 18,712,986,753,128,748/156,959,279.93
  6. Step 6: Final answer
    x = 119,221,920.24

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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.