Home / 206,844,381.40-310,266,572.10-120,680,080.60

Finding the Fourth Proportional to 206,844,381.40, 310,266,572.10 and 120,680,080.60

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Solution

The fourth proportional to 206,844,381.40, 310,266,572.10 and 120,680,080.60 is: 181,020,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,844,381.40 : 310,266,572.10 = 120,680,080.60 : x
  2. Step 2: Convert to fraction form
    206,844,381.40/310,266,572.10 = 120,680,080.60/x
  3. Step 3: Cross multiply
    206,844,381.40x = 310,266,572.10 × 120,680,080.60
  4. Step 4: Simplify right side
    206,844,381.40x = 37,442,994,928,513,712
  5. Step 5: Solve for x
    x = 37,442,994,928,513,712/206,844,381.40
  6. Step 6: Final answer
    x = 181,020,120.90

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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.