Home / 30,634,070.80-42,281,290.92-18,251,418.12

Finding the Fourth Proportional to 30,634,070.80, 42,281,290.92 and 18,251,418.12

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Solution

The fourth proportional to 30,634,070.80, 42,281,290.92 and 18,251,418.12 is: 25,190,694.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,634,070.80 : 42,281,290.92 = 18,251,418.12 : x
  2. Step 2: Convert to fraction form
    30,634,070.80/42,281,290.92 = 18,251,418.12/x
  3. Step 3: Cross multiply
    30,634,070.80x = 42,281,290.92 × 18,251,418.12
  4. Step 4: Simplify right side
    30,634,070.80x = 771,693,519,234,279.50
  5. Step 5: Solve for x
    x = 771,693,519,234,279.50/30,634,070.80
  6. Step 6: Final answer
    x = 25,190,694.51

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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.