Home / 782,925,499.10-1,080,475,974.40-485,663,519.04

Finding the Fourth Proportional to 782,925,499.10, 1,080,475,974.40 and 485,663,519.04

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Solution

The fourth proportional to 782,925,499.10, 1,080,475,974.40 and 485,663,519.04 is: 670,239,715.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,925,499.10 : 1,080,475,974.40 = 485,663,519.04 : x
  2. Step 2: Convert to fraction form
    782,925,499.10/1,080,475,974.40 = 485,663,519.04/x
  3. Step 3: Cross multiply
    782,925,499.10x = 1,080,475,974.40 × 485,663,519.04
  4. Step 4: Simplify right side
    782,925,499.10x = 524,747,763,962,491,328
  5. Step 5: Solve for x
    x = 524,747,763,962,491,328/782,925,499.10
  6. Step 6: Final answer
    x = 670,239,715.74

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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.