Home / 661,666,058.60-992,711,664.30-443,562,672.20

Finding the Fourth Proportional to 661,666,058.60, 992,711,664.30 and 443,562,672.20

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Solution

The fourth proportional to 661,666,058.60, 992,711,664.30 and 443,562,672.20 is: 665,486,513.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,666,058.60 : 992,711,664.30 = 443,562,672.20 : x
  2. Step 2: Convert to fraction form
    661,666,058.60/992,711,664.30 = 443,562,672.20/x
  3. Step 3: Cross multiply
    661,666,058.60x = 992,711,664.30 × 443,562,672.20
  4. Step 4: Simplify right side
    661,666,058.60x = 440,329,838,541,017,280
  5. Step 5: Solve for x
    x = 440,329,838,541,017,280/661,666,058.60
  6. Step 6: Final answer
    x = 665,486,513.65

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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.