Home / 199,541,780.80-299,088,722.40-84,506,747.20

Finding the Fourth Proportional to 199,541,780.80, 299,088,722.40 and 84,506,747.20

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Solution

The fourth proportional to 199,541,780.80, 299,088,722.40 and 84,506,747.20 is: 126,665,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,541,780.80 : 299,088,722.40 = 84,506,747.20 : x
  2. Step 2: Convert to fraction form
    199,541,780.80/299,088,722.40 = 84,506,747.20/x
  3. Step 3: Cross multiply
    199,541,780.80x = 299,088,722.40 × 84,506,747.20
  4. Step 4: Simplify right side
    199,541,780.80x = 25,275,015,054,227,776
  5. Step 5: Solve for x
    x = 25,275,015,054,227,776/199,541,780.80
  6. Step 6: Final answer
    x = 126,665,277.58

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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.