Home / 20,535,074.74-28,338,627.09-11,367,870.58

Finding the Fourth Proportional to 20,535,074.74, 28,338,627.09 and 11,367,870.58

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Solution

The fourth proportional to 20,535,074.74, 28,338,627.09 and 11,367,870.58 is: 15,687,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,074.74 : 28,338,627.09 = 11,367,870.58 : x
  2. Step 2: Convert to fraction form
    20,535,074.74/28,338,627.09 = 11,367,870.58/x
  3. Step 3: Cross multiply
    20,535,074.74x = 28,338,627.09 × 11,367,870.58
  4. Step 4: Simplify right side
    20,535,074.74x = 322,149,845,174,002
  5. Step 5: Solve for x
    x = 322,149,845,174,002/20,535,074.74
  6. Step 6: Final answer
    x = 15,687,785.37

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1.5x scale

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.