Home / 928,053,419.76-1,280,747,392.58-531,653,021.28

Finding the Fourth Proportional to 928,053,419.76, 1,280,747,392.58 and 531,653,021.28

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Solution

The fourth proportional to 928,053,419.76, 1,280,747,392.58 and 531,653,021.28 is: 733,700,459.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,053,419.76 : 1,280,747,392.58 = 531,653,021.28 : x
  2. Step 2: Convert to fraction form
    928,053,419.76/1,280,747,392.58 = 531,653,021.28/x
  3. Step 3: Cross multiply
    928,053,419.76x = 1,280,747,392.58 × 531,653,021.28
  4. Step 4: Simplify right side
    928,053,419.76x = 680,913,220,761,639,168
  5. Step 5: Solve for x
    x = 680,913,220,761,639,168/928,053,419.76
  6. Step 6: Final answer
    x = 733,700,459.76

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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.