Home / 485,868,522.72-670,578,736.89-297,801,429.86

Finding the Fourth Proportional to 485,868,522.72, 670,578,736.89 and 297,801,429.86

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Solution

The fourth proportional to 485,868,522.72, 670,578,736.89 and 297,801,429.86 is: 411,015,114.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,868,522.72 : 670,578,736.89 = 297,801,429.86 : x
  2. Step 2: Convert to fraction form
    485,868,522.72/670,578,736.89 = 297,801,429.86/x
  3. Step 3: Cross multiply
    485,868,522.72x = 670,578,736.89 × 297,801,429.86
  4. Step 4: Simplify right side
    485,868,522.72x = 199,699,306,680,674,272
  5. Step 5: Solve for x
    x = 199,699,306,680,674,272/485,868,522.72
  6. Step 6: Final answer
    x = 411,015,114.87

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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.