Home / 869,877,520.30-1,304,816,280.45-482,893,993.90

Finding the Fourth Proportional to 869,877,520.30, 1,304,816,280.45 and 482,893,993.90

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Solution

The fourth proportional to 869,877,520.30, 1,304,816,280.45 and 482,893,993.90 is: 724,340,990.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,877,520.30 : 1,304,816,280.45 = 482,893,993.90 : x
  2. Step 2: Convert to fraction form
    869,877,520.30/1,304,816,280.45 = 482,893,993.90/x
  3. Step 3: Cross multiply
    869,877,520.30x = 1,304,816,280.45 × 482,893,993.90
  4. Step 4: Simplify right side
    869,877,520.30x = 630,087,944,972,242,944
  5. Step 5: Solve for x
    x = 630,087,944,972,242,944/869,877,520.30
  6. Step 6: Final answer
    x = 724,340,990.85

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1.5x scale

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.