Home / 1,005,598,709.28-1,388,363,807.52-688,589,449.92

Finding the Fourth Proportional to 1,005,598,709.28, 1,388,363,807.52 and 688,589,449.92

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Solution

The fourth proportional to 1,005,598,709.28, 1,388,363,807.52 and 688,589,449.92 is: 950,690,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,598,709.28 : 1,388,363,807.52 = 688,589,449.92 : x
  2. Step 2: Convert to fraction form
    1,005,598,709.28/1,388,363,807.52 = 688,589,449.92/x
  3. Step 3: Cross multiply
    1,005,598,709.28x = 1,388,363,807.52 × 688,589,449.92
  4. Step 4: Simplify right side
    1,005,598,709.28x = 956,012,670,509,033,472
  5. Step 5: Solve for x
    x = 956,012,670,509,033,472/1,005,598,709.28
  6. Step 6: Final answer
    x = 950,690,033.40

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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.