Home / 434,500,900.68-647,658,127.57-399,633,122.28

Finding the Fourth Proportional to 434,500,900.68, 647,658,127.57 and 399,633,122.28

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Solution

The fourth proportional to 434,500,900.68, 647,658,127.57 and 399,633,122.28 is: 595,684,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,500,900.68 : 647,658,127.57 = 399,633,122.28 : x
  2. Step 2: Convert to fraction form
    434,500,900.68/647,658,127.57 = 399,633,122.28/x
  3. Step 3: Cross multiply
    434,500,900.68x = 647,658,127.57 × 399,633,122.28
  4. Step 4: Simplify right side
    434,500,900.68x = 258,825,639,690,817,664
  5. Step 5: Solve for x
    x = 258,825,639,690,817,664/434,500,900.68
  6. Step 6: Final answer
    x = 595,684,932.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.