Home / 120,787,980.96-166,689,331.26-68,575,951.20

Finding the Fourth Proportional to 120,787,980.96, 166,689,331.26 and 68,575,951.20

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Solution

The fourth proportional to 120,787,980.96, 166,689,331.26 and 68,575,951.20 is: 94,635,901.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,787,980.96 : 166,689,331.26 = 68,575,951.20 : x
  2. Step 2: Convert to fraction form
    120,787,980.96/166,689,331.26 = 68,575,951.20/x
  3. Step 3: Cross multiply
    120,787,980.96x = 166,689,331.26 × 68,575,951.20
  4. Step 4: Simplify right side
    120,787,980.96x = 11,430,879,446,046,394
  5. Step 5: Solve for x
    x = 11,430,879,446,046,394/120,787,980.96
  6. Step 6: Final answer
    x = 94,635,901.31

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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.