Home / 672,192,041.20-1,008,288,061.80-399,422,402.80

Finding the Fourth Proportional to 672,192,041.20, 1,008,288,061.80 and 399,422,402.80

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Solution

The fourth proportional to 672,192,041.20, 1,008,288,061.80 and 399,422,402.80 is: 599,133,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,192,041.20 : 1,008,288,061.80 = 399,422,402.80 : x
  2. Step 2: Convert to fraction form
    672,192,041.20/1,008,288,061.80 = 399,422,402.80/x
  3. Step 3: Cross multiply
    672,192,041.20x = 1,008,288,061.80 × 399,422,402.80
  4. Step 4: Simplify right side
    672,192,041.20x = 402,732,840,358,710,912
  5. Step 5: Solve for x
    x = 402,732,840,358,710,912/672,192,041.20
  6. Step 6: Final answer
    x = 599,133,604.20

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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.