Home / 543,283,347.10-814,925,020.65-391,362,079.90

Finding the Fourth Proportional to 543,283,347.10, 814,925,020.65 and 391,362,079.90

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Solution

The fourth proportional to 543,283,347.10, 814,925,020.65 and 391,362,079.90 is: 587,043,119.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,283,347.10 : 814,925,020.65 = 391,362,079.90 : x
  2. Step 2: Convert to fraction form
    543,283,347.10/814,925,020.65 = 391,362,079.90/x
  3. Step 3: Cross multiply
    543,283,347.10x = 814,925,020.65 × 391,362,079.90
  4. Step 4: Simplify right side
    543,283,347.10x = 318,930,751,044,134,400
  5. Step 5: Solve for x
    x = 318,930,751,044,134,400/543,283,347.10
  6. Step 6: Final answer
    x = 587,043,119.85

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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.