Home / 485,516,803.80-728,275,205.70-482,115,581.40

Finding the Fourth Proportional to 485,516,803.80, 728,275,205.70 and 482,115,581.40

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Solution

The fourth proportional to 485,516,803.80, 728,275,205.70 and 482,115,581.40 is: 723,173,372.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,516,803.80 : 728,275,205.70 = 482,115,581.40 : x
  2. Step 2: Convert to fraction form
    485,516,803.80/728,275,205.70 = 482,115,581.40/x
  3. Step 3: Cross multiply
    485,516,803.80x = 728,275,205.70 × 482,115,581.40
  4. Step 4: Simplify right side
    485,516,803.80x = 351,112,824,215,260,096
  5. Step 5: Solve for x
    x = 351,112,824,215,260,096/485,516,803.80
  6. Step 6: Final answer
    x = 723,173,372.10

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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.