Home / 120,853,607.76-166,778,002.71-65,849,464.26

Finding the Fourth Proportional to 120,853,607.76, 166,778,002.71 and 65,849,464.26

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Solution

The fourth proportional to 120,853,607.76, 166,778,002.71 and 65,849,464.26 is: 90,872,273.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,853,607.76 : 166,778,002.71 = 65,849,464.26 : x
  2. Step 2: Convert to fraction form
    120,853,607.76/166,778,002.71 = 65,849,464.26/x
  3. Step 3: Cross multiply
    120,853,607.76x = 166,778,002.71 × 65,849,464.26
  4. Step 4: Simplify right side
    120,853,607.76x = 10,982,242,128,806,328
  5. Step 5: Solve for x
    x = 10,982,242,128,806,328/120,853,607.76
  6. Step 6: Final answer
    x = 90,872,273.76

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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.