Home / 108,128,525.76-149,222,741.76-66,896,856

Finding the Fourth Proportional to 108,128,525.76, 149,222,741.76 and 66,896,856

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Solution

The fourth proportional to 108,128,525.76, 149,222,741.76 and 66,896,856 is: 92,320,987.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,128,525.76 : 149,222,741.76 = 66,896,856 : x
  2. Step 2: Convert to fraction form
    108,128,525.76/149,222,741.76 = 66,896,856/x
  3. Step 3: Cross multiply
    108,128,525.76x = 149,222,741.76 × 66,896,856
  4. Step 4: Simplify right side
    108,128,525.76x = 9,982,532,267,443,906
  5. Step 5: Solve for x
    x = 9,982,532,267,443,906/108,128,525.76
  6. Step 6: Final answer
    x = 92,320,987.43

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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.