Home / 1,345,680,229.80-2,019,423,138.30-472,279,909.80

Finding the Fourth Proportional to 1,345,680,229.80, 2,019,423,138.30 and 472,279,909.80

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Solution

The fourth proportional to 1,345,680,229.80, 2,019,423,138.30 and 472,279,909.80 is: 708,736,709.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,680,229.80 : 2,019,423,138.30 = 472,279,909.80 : x
  2. Step 2: Convert to fraction form
    1,345,680,229.80/2,019,423,138.30 = 472,279,909.80/x
  3. Step 3: Cross multiply
    1,345,680,229.80x = 2,019,423,138.30 × 472,279,909.80
  4. Step 4: Simplify right side
    1,345,680,229.80x = 953,732,977,604,356,864
  5. Step 5: Solve for x
    x = 953,732,977,604,356,864/1,345,680,229.80
  6. Step 6: Final answer
    x = 708,736,709.13

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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.