Home / 28,748,222.57-39,672,341.80-15,695,481.10

Finding the Fourth Proportional to 28,748,222.57, 39,672,341.80 and 15,695,481.10

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Solution

The fourth proportional to 28,748,222.57, 39,672,341.80 and 15,695,481.10 is: 21,659,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748,222.57 : 39,672,341.80 = 15,695,481.10 : x
  2. Step 2: Convert to fraction form
    28,748,222.57/39,672,341.80 = 15,695,481.10/x
  3. Step 3: Cross multiply
    28,748,222.57x = 39,672,341.80 × 15,695,481.10
  4. Step 4: Simplify right side
    28,748,222.57x = 622,676,490,739,047.50
  5. Step 5: Solve for x
    x = 622,676,490,739,047.50/28,748,222.57
  6. Step 6: Final answer
    x = 21,659,651.80

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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.