Home / 28,477,344.80-39,287,888.16-21,052,834.40

Finding the Fourth Proportional to 28,477,344.80, 39,287,888.16 and 21,052,834.40

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Solution

The fourth proportional to 28,477,344.80, 39,287,888.16 and 21,052,834.40 is: 29,044,891.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,477,344.80 : 39,287,888.16 = 21,052,834.40 : x
  2. Step 2: Convert to fraction form
    28,477,344.80/39,287,888.16 = 21,052,834.40/x
  3. Step 3: Cross multiply
    28,477,344.80x = 39,287,888.16 × 21,052,834.40
  4. Step 4: Simplify right side
    28,477,344.80x = 827,121,403,358,200.62
  5. Step 5: Solve for x
    x = 827,121,403,358,200.62/28,477,344.80
  6. Step 6: Final answer
    x = 29,044,891.97

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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.