Home / 20,535,074.24-28,338,626.40-11,367,870.08

Finding the Fourth Proportional to 20,535,074.24, 28,338,626.40 and 11,367,870.08

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Solution

The fourth proportional to 20,535,074.24, 28,338,626.40 and 11,367,870.08 is: 15,687,784.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535,074.24 : 28,338,626.40 = 11,367,870.08 : x
  2. Step 2: Convert to fraction form
    20,535,074.24/28,338,626.40 = 11,367,870.08/x
  3. Step 3: Cross multiply
    20,535,074.24x = 28,338,626.40 × 11,367,870.08
  4. Step 4: Simplify right side
    20,535,074.24x = 322,149,823,160,858.12
  5. Step 5: Solve for x
    x = 322,149,823,160,858.12/20,535,074.24
  6. Step 6: Final answer
    x = 15,687,784.68

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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.