Home / 28,780,992.40-39,721,820.72-18,323,668.84

Finding the Fourth Proportional to 28,780,992.40, 39,721,820.72 and 18,323,668.84

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Solution

The fourth proportional to 28,780,992.40, 39,721,820.72 and 18,323,668.84 is: 25,289,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780,992.40 : 39,721,820.72 = 18,323,668.84 : x
  2. Step 2: Convert to fraction form
    28,780,992.40/39,721,820.72 = 18,323,668.84/x
  3. Step 3: Cross multiply
    28,780,992.40x = 39,721,820.72 × 18,323,668.84
  4. Step 4: Simplify right side
    28,780,992.40x = 727,849,488,595,130.38
  5. Step 5: Solve for x
    x = 727,849,488,595,130.38/28,780,992.40
  6. Step 6: Final answer
    x = 25,289,242.24

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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.