Home / 120,510,699.40-166,304,872.34-65,506,555.90

Finding the Fourth Proportional to 120,510,699.40, 166,304,872.34 and 65,506,555.90

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Solution

The fourth proportional to 120,510,699.40, 166,304,872.34 and 65,506,555.90 is: 90,399,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510,699.40 : 166,304,872.34 = 65,506,555.90 : x
  2. Step 2: Convert to fraction form
    120,510,699.40/166,304,872.34 = 65,506,555.90/x
  3. Step 3: Cross multiply
    120,510,699.40x = 166,304,872.34 × 65,506,555.90
  4. Step 4: Simplify right side
    120,510,699.40x = 10,894,059,416,382,574
  5. Step 5: Solve for x
    x = 10,894,059,416,382,574/120,510,699.40
  6. Step 6: Final answer
    x = 90,399,105.40

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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.