Home / 992,704,639.40-1,489,056,959.10-839,649,631.40

Finding the Fourth Proportional to 992,704,639.40, 1,489,056,959.10 and 839,649,631.40

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Solution

The fourth proportional to 992,704,639.40, 1,489,056,959.10 and 839,649,631.40 is: 1,259,474,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,704,639.40 : 1,489,056,959.10 = 839,649,631.40 : x
  2. Step 2: Convert to fraction form
    992,704,639.40/1,489,056,959.10 = 839,649,631.40/x
  3. Step 3: Cross multiply
    992,704,639.40x = 1,489,056,959.10 × 839,649,631.40
  4. Step 4: Simplify right side
    992,704,639.40x = 1,250,286,126,841,919,744
  5. Step 5: Solve for x
    x = 1,250,286,126,841,919,744/992,704,639.40
  6. Step 6: Final answer
    x = 1,259,474,447.10

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1.5x scale

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.