Home / 969,955,937.28-1,338,539,731.20-523,919,298.78

Finding the Fourth Proportional to 969,955,937.28, 1,338,539,731.20 and 523,919,298.78

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Solution

The fourth proportional to 969,955,937.28, 1,338,539,731.20 and 523,919,298.78 is: 723,008,922.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,955,937.28 : 1,338,539,731.20 = 523,919,298.78 : x
  2. Step 2: Convert to fraction form
    969,955,937.28/1,338,539,731.20 = 523,919,298.78/x
  3. Step 3: Cross multiply
    969,955,937.28x = 1,338,539,731.20 × 523,919,298.78
  4. Step 4: Simplify right side
    969,955,937.28x = 701,286,797,359,473,664
  5. Step 5: Solve for x
    x = 701,286,797,359,473,664/969,955,937.28
  6. Step 6: Final answer
    x = 723,008,922.78

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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.