Home / 38,416,862.80-57,550,644.60-21,346,987.60

Finding the Fourth Proportional to 38,416,862.80, 57,550,644.60 and 21,346,987.60

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Solution

The fourth proportional to 38,416,862.80, 57,550,644.60 and 21,346,987.60 is: 31,979,001.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,416,862.80 : 57,550,644.60 = 21,346,987.60 : x
  2. Step 2: Convert to fraction form
    38,416,862.80/57,550,644.60 = 21,346,987.60/x
  3. Step 3: Cross multiply
    38,416,862.80x = 57,550,644.60 × 21,346,987.60
  4. Step 4: Simplify right side
    38,416,862.80x = 1,228,532,896,648,207
  5. Step 5: Solve for x
    x = 1,228,532,896,648,207/38,416,862.80
  6. Step 6: Final answer
    x = 31,979,001.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.