Home / 485,868,523.72-670,578,738.27-297,801,430.86

Finding the Fourth Proportional to 485,868,523.72, 670,578,738.27 and 297,801,430.86

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Solution

The fourth proportional to 485,868,523.72, 670,578,738.27 and 297,801,430.86 is: 411,015,116.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,868,523.72 : 670,578,738.27 = 297,801,430.86 : x
  2. Step 2: Convert to fraction form
    485,868,523.72/670,578,738.27 = 297,801,430.86/x
  3. Step 3: Cross multiply
    485,868,523.72x = 670,578,738.27 × 297,801,430.86
  4. Step 4: Simplify right side
    485,868,523.72x = 199,699,307,761,099,456
  5. Step 5: Solve for x
    x = 199,699,307,761,099,456/485,868,523.72
  6. Step 6: Final answer
    x = 411,015,116.25

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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.