Home / 20,961,459.86-31,445,054.82-7,312,560.29

Finding the Fourth Proportional to 20,961,459.86, 31,445,054.82 and 7,312,560.29

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Solution

The fourth proportional to 20,961,459.86, 31,445,054.82 and 7,312,560.29 is: 10,969,839.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,961,459.86 : 31,445,054.82 = 7,312,560.29 : x
  2. Step 2: Convert to fraction form
    20,961,459.86/31,445,054.82 = 7,312,560.29/x
  3. Step 3: Cross multiply
    20,961,459.86x = 31,445,054.82 × 7,312,560.29
  4. Step 4: Simplify right side
    20,961,459.86x = 229,943,859,154,298.78
  5. Step 5: Solve for x
    x = 229,943,859,154,298.78/20,961,459.86
  6. Step 6: Final answer
    x = 10,969,839.92

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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.