Home / 10,647,353.80-15,971,030.70-6,385,328.20

Finding the Fourth Proportional to 10,647,353.80, 15,971,030.70 and 6,385,328.20

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Solution

The fourth proportional to 10,647,353.80, 15,971,030.70 and 6,385,328.20 is: 9,577,992.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647,353.80 : 15,971,030.70 = 6,385,328.20 : x
  2. Step 2: Convert to fraction form
    10,647,353.80/15,971,030.70 = 6,385,328.20/x
  3. Step 3: Cross multiply
    10,647,353.80x = 15,971,030.70 × 6,385,328.20
  4. Step 4: Simplify right side
    10,647,353.80x = 101,980,272,711,775.73
  5. Step 5: Solve for x
    x = 101,980,272,711,775.73/10,647,353.80
  6. Step 6: Final answer
    x = 9,577,992.30

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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.