Home / 289,688,391.98-399,780,493.56-165,952,983.92

Finding the Fourth Proportional to 289,688,391.98, 399,780,493.56 and 165,952,983.92

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Solution

The fourth proportional to 289,688,391.98, 399,780,493.56 and 165,952,983.92 is: 229,021,140.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,688,391.98 : 399,780,493.56 = 165,952,983.92 : x
  2. Step 2: Convert to fraction form
    289,688,391.98/399,780,493.56 = 165,952,983.92/x
  3. Step 3: Cross multiply
    289,688,391.98x = 399,780,493.56 × 165,952,983.92
  4. Step 4: Simplify right side
    289,688,391.98x = 66,344,765,819,292,336
  5. Step 5: Solve for x
    x = 66,344,765,819,292,336/289,688,391.98
  6. Step 6: Final answer
    x = 229,021,140.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.