Home / 402,294,406.45-603,441,609.68-198,221,062.45

Finding the Fourth Proportional to 402,294,406.45, 603,441,609.68 and 198,221,062.45

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Solution

The fourth proportional to 402,294,406.45, 603,441,609.68 and 198,221,062.45 is: 297,331,593.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,294,406.45 : 603,441,609.68 = 198,221,062.45 : x
  2. Step 2: Convert to fraction form
    402,294,406.45/603,441,609.68 = 198,221,062.45/x
  3. Step 3: Cross multiply
    402,294,406.45x = 603,441,609.68 × 198,221,062.45
  4. Step 4: Simplify right side
    402,294,406.45x = 119,614,836,996,316,688
  5. Step 5: Solve for x
    x = 119,614,836,996,316,688/402,294,406.45
  6. Step 6: Final answer
    x = 297,331,593.68

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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.