Home / 969,955,928.28-1,338,539,718.78-523,919,289.78

Finding the Fourth Proportional to 969,955,928.28, 1,338,539,718.78 and 523,919,289.78

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Solution

The fourth proportional to 969,955,928.28, 1,338,539,718.78 and 523,919,289.78 is: 723,008,910.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,955,928.28 : 1,338,539,718.78 = 523,919,289.78 : x
  2. Step 2: Convert to fraction form
    969,955,928.28/1,338,539,718.78 = 523,919,289.78/x
  3. Step 3: Cross multiply
    969,955,928.28x = 1,338,539,718.78 × 523,919,289.78
  4. Step 4: Simplify right side
    969,955,928.28x = 701,286,778,805,538,432
  5. Step 5: Solve for x
    x = 701,286,778,805,538,432/969,955,928.28
  6. Step 6: Final answer
    x = 723,008,910.36

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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.