Home / 442,628,470.80-663,942,706.20-429,873,886.80

Finding the Fourth Proportional to 442,628,470.80, 663,942,706.20 and 429,873,886.80

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Solution

The fourth proportional to 442,628,470.80, 663,942,706.20 and 429,873,886.80 is: 644,810,830.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,628,470.80 : 663,942,706.20 = 429,873,886.80 : x
  2. Step 2: Convert to fraction form
    442,628,470.80/663,942,706.20 = 429,873,886.80/x
  3. Step 3: Cross multiply
    442,628,470.80x = 663,942,706.20 × 429,873,886.80
  4. Step 4: Simplify right side
    442,628,470.80x = 285,411,631,726,704,480
  5. Step 5: Solve for x
    x = 285,411,631,726,704,480/442,628,470.80
  6. Step 6: Final answer
    x = 644,810,830.20

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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.