Home / 1,267,691,310.66-1,749,380,253.42-731,824,890.66

Finding the Fourth Proportional to 1,267,691,310.66, 1,749,380,253.42 and 731,824,890.66

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Solution

The fourth proportional to 1,267,691,310.66, 1,749,380,253.42 and 731,824,890.66 is: 1,009,898,862.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,691,310.66 : 1,749,380,253.42 = 731,824,890.66 : x
  2. Step 2: Convert to fraction form
    1,267,691,310.66/1,749,380,253.42 = 731,824,890.66/x
  3. Step 3: Cross multiply
    1,267,691,310.66x = 1,749,380,253.42 × 731,824,890.66
  4. Step 4: Simplify right side
    1,267,691,310.66x = 1,280,240,012,681,854,464
  5. Step 5: Solve for x
    x = 1,280,240,012,681,854,464/1,267,691,310.66
  6. Step 6: Final answer
    x = 1,009,898,862.54

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Double scale
Find fourth proportional to 1,267,691,311.66, 1,749,380,254.80 and 731,824,891.66
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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.