Home / 121,159,454.40-181,740,218.40-40,380,422.40

Finding the Fourth Proportional to 121,159,454.40, 181,740,218.40 and 40,380,422.40

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Solution

The fourth proportional to 121,159,454.40, 181,740,218.40 and 40,380,422.40 is: 60,570,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,159,454.40 : 181,740,218.40 = 40,380,422.40 : x
  2. Step 2: Convert to fraction form
    121,159,454.40/181,740,218.40 = 40,380,422.40/x
  3. Step 3: Cross multiply
    121,159,454.40x = 181,740,218.40 × 40,380,422.40
  4. Step 4: Simplify right side
    121,159,454.40x = 7,338,746,786,060,252
  5. Step 5: Solve for x
    x = 7,338,746,786,060,252/121,159,454.40
  6. Step 6: Final answer
    x = 60,570,979.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.