Home / 154,957,869.48-213,851,531.25-85,343,231.91

Finding the Fourth Proportional to 154,957,869.48, 213,851,531.25 and 85,343,231.91

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Solution

The fourth proportional to 154,957,869.48, 213,851,531.25 and 85,343,231.91 is: 117,778,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,957,869.48 : 213,851,531.25 = 85,343,231.91 : x
  2. Step 2: Convert to fraction form
    154,957,869.48/213,851,531.25 = 85,343,231.91/x
  3. Step 3: Cross multiply
    154,957,869.48x = 213,851,531.25 × 85,343,231.91
  4. Step 4: Simplify right side
    154,957,869.48x = 18,250,780,825,777,360
  5. Step 5: Solve for x
    x = 18,250,780,825,777,360/154,957,869.48
  6. Step 6: Final answer
    x = 117,778,986.55

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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.