Home / 28,918,987.44-39,908,609.76-15,866,009.04

Finding the Fourth Proportional to 28,918,987.44, 39,908,609.76 and 15,866,009.04

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Solution

The fourth proportional to 28,918,987.44, 39,908,609.76 and 15,866,009.04 is: 21,895,315.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918,987.44 : 39,908,609.76 = 15,866,009.04 : x
  2. Step 2: Convert to fraction form
    28,918,987.44/39,908,609.76 = 15,866,009.04/x
  3. Step 3: Cross multiply
    28,918,987.44x = 39,908,609.76 × 15,866,009.04
  4. Step 4: Simplify right side
    28,918,987.44x = 633,190,363,225,992.12
  5. Step 5: Solve for x
    x = 633,190,363,225,992.12/28,918,987.44
  6. Step 6: Final answer
    x = 21,895,315.82

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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.