Home / 869,049,207.86-1,199,251,410.45-492,731,113.46

Finding the Fourth Proportional to 869,049,207.86, 1,199,251,410.45 and 492,731,113.46

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Solution

The fourth proportional to 869,049,207.86, 1,199,251,410.45 and 492,731,113.46 is: 679,948,243.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,049,207.86 : 1,199,251,410.45 = 492,731,113.46 : x
  2. Step 2: Convert to fraction form
    869,049,207.86/1,199,251,410.45 = 492,731,113.46/x
  3. Step 3: Cross multiply
    869,049,207.86x = 1,199,251,410.45 × 492,731,113.46
  4. Step 4: Simplify right side
    869,049,207.86x = 590,908,482,789,504,000
  5. Step 5: Solve for x
    x = 590,908,482,789,504,000/869,049,207.86
  6. Step 6: Final answer
    x = 679,948,243.95

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1.5x scale

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.