Home / 20,207,979.36-30,291,539.76-8,700,950.88

Finding the Fourth Proportional to 20,207,979.36, 30,291,539.76 and 8,700,950.88

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Solution

The fourth proportional to 20,207,979.36, 30,291,539.76 and 8,700,950.88 is: 13,042,630.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207,979.36 : 30,291,539.76 = 8,700,950.88 : x
  2. Step 2: Convert to fraction form
    20,207,979.36/30,291,539.76 = 8,700,950.88/x
  3. Step 3: Cross multiply
    20,207,979.36x = 30,291,539.76 × 8,700,950.88
  4. Step 4: Simplify right side
    20,207,979.36x = 263,565,199,531,327.03
  5. Step 5: Solve for x
    x = 263,565,199,531,327.03/20,207,979.36
  6. Step 6: Final answer
    x = 13,042,630.08

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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.