Home / 28,808,782.38-39,755,560.59-15,755,999.58

Finding the Fourth Proportional to 28,808,782.38, 39,755,560.59 and 15,755,999.58

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Solution

The fourth proportional to 28,808,782.38, 39,755,560.59 and 15,755,999.58 is: 21,742,973.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808,782.38 : 39,755,560.59 = 15,755,999.58 : x
  2. Step 2: Convert to fraction form
    28,808,782.38/39,755,560.59 = 15,755,999.58/x
  3. Step 3: Cross multiply
    28,808,782.38x = 39,755,560.59 × 15,755,999.58
  4. Step 4: Simplify right side
    28,808,782.38x = 626,388,595,958,704.62
  5. Step 5: Solve for x
    x = 626,388,595,958,704.62/28,808,782.38
  6. Step 6: Final answer
    x = 21,742,973.64

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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.