Home / 543,283,345.10-814,925,017.65-391,362,077.90

Finding the Fourth Proportional to 543,283,345.10, 814,925,017.65 and 391,362,077.90

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Solution

The fourth proportional to 543,283,345.10, 814,925,017.65 and 391,362,077.90 is: 587,043,116.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,283,345.10 : 814,925,017.65 = 391,362,077.90 : x
  2. Step 2: Convert to fraction form
    543,283,345.10/814,925,017.65 = 391,362,077.90/x
  3. Step 3: Cross multiply
    543,283,345.10x = 814,925,017.65 × 391,362,077.90
  4. Step 4: Simplify right side
    543,283,345.10x = 318,930,748,240,198,144
  5. Step 5: Solve for x
    x = 318,930,748,240,198,144/543,283,345.10
  6. Step 6: Final answer
    x = 587,043,116.85

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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.