Home / 120,422,470.80-166,177,686.06-68,210,459.40

Finding the Fourth Proportional to 120,422,470.80, 166,177,686.06 and 68,210,459.40

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Solution

The fourth proportional to 120,422,470.80, 166,177,686.06 and 68,210,459.40 is: 94,127,418.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,422,470.80 : 166,177,686.06 = 68,210,459.40 : x
  2. Step 2: Convert to fraction form
    120,422,470.80/166,177,686.06 = 68,210,459.40/x
  3. Step 3: Cross multiply
    120,422,470.80x = 166,177,686.06 × 68,210,459.40
  4. Step 4: Simplify right side
    120,422,470.80x = 11,335,056,308,181,578
  5. Step 5: Solve for x
    x = 11,335,056,308,181,578/120,422,470.80
  6. Step 6: Final answer
    x = 94,127,418.52

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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.