Home / 28,473,407.25-42,717,391.15-8,278,649.25

Finding the Fourth Proportional to 28,473,407.25, 42,717,391.15 and 8,278,649.25

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Solution

The fourth proportional to 28,473,407.25, 42,717,391.15 and 8,278,649.25 is: 12,420,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,473,407.25 : 42,717,391.15 = 8,278,649.25 : x
  2. Step 2: Convert to fraction form
    28,473,407.25/42,717,391.15 = 8,278,649.25/x
  3. Step 3: Cross multiply
    28,473,407.25x = 42,717,391.15 × 8,278,649.25
  4. Step 4: Simplify right side
    28,473,407.25x = 353,642,297,971,620.56
  5. Step 5: Solve for x
    x = 353,642,297,971,620.56/28,473,407.25
  6. Step 6: Final answer
    x = 12,420,090.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.