Home / 1,005,598,715.28-1,388,363,815.80-688,589,455.92

Finding the Fourth Proportional to 1,005,598,715.28, 1,388,363,815.80 and 688,589,455.92

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Solution

The fourth proportional to 1,005,598,715.28, 1,388,363,815.80 and 688,589,455.92 is: 950,690,041.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,598,715.28 : 1,388,363,815.80 = 688,589,455.92 : x
  2. Step 2: Convert to fraction form
    1,005,598,715.28/1,388,363,815.80 = 688,589,455.92/x
  3. Step 3: Cross multiply
    1,005,598,715.28x = 1,388,363,815.80 × 688,589,455.92
  4. Step 4: Simplify right side
    1,005,598,715.28x = 956,012,684,540,737,024
  5. Step 5: Solve for x
    x = 956,012,684,540,737,024/1,005,598,715.28
  6. Step 6: Final answer
    x = 950,690,041.68

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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.