Home / 658,315,266.60-987,441,407.10-221,573,116.20

Finding the Fourth Proportional to 658,315,266.60, 987,441,407.10 and 221,573,116.20

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Solution

The fourth proportional to 658,315,266.60, 987,441,407.10 and 221,573,116.20 is: 332,349,074.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,315,266.60 : 987,441,407.10 = 221,573,116.20 : x
  2. Step 2: Convert to fraction form
    658,315,266.60/987,441,407.10 = 221,573,116.20/x
  3. Step 3: Cross multiply
    658,315,266.60x = 987,441,407.10 × 221,573,116.20
  4. Step 4: Simplify right side
    658,315,266.60x = 218,790,469,636,059,808
  5. Step 5: Solve for x
    x = 218,790,469,636,059,808/658,315,266.60
  6. Step 6: Final answer
    x = 332,349,074.58

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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.