Home / 641,713,005.90-962,634,762.50-221,479,685.55

Finding the Fourth Proportional to 641,713,005.90, 962,634,762.50 and 221,479,685.55

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Solution

The fourth proportional to 641,713,005.90, 962,634,762.50 and 221,479,685.55 is: 332,242,049.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,713,005.90 : 962,634,762.50 = 221,479,685.55 : x
  2. Step 2: Convert to fraction form
    641,713,005.90/962,634,762.50 = 221,479,685.55/x
  3. Step 3: Cross multiply
    641,713,005.90x = 962,634,762.50 × 221,479,685.55
  4. Step 4: Simplify right side
    641,713,005.90x = 213,204,044,496,891,552
  5. Step 5: Solve for x
    x = 213,204,044,496,891,552/641,713,005.90
  6. Step 6: Final answer
    x = 332,242,049.85

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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.