Home / 13,989,865.52-20,985,547.80-4,405,990.88

Finding the Fourth Proportional to 13,989,865.52, 20,985,547.80 and 4,405,990.88

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Solution

The fourth proportional to 13,989,865.52, 20,985,547.80 and 4,405,990.88 is: 6,609,222.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,989,865.52 : 20,985,547.80 = 4,405,990.88 : x
  2. Step 2: Convert to fraction form
    13,989,865.52/20,985,547.80 = 4,405,990.88/x
  3. Step 3: Cross multiply
    13,989,865.52x = 20,985,547.80 × 4,405,990.88
  4. Step 4: Simplify right side
    13,989,865.52x = 92,462,132,218,604.06
  5. Step 5: Solve for x
    x = 92,462,132,218,604.06/13,989,865.52
  6. Step 6: Final answer
    x = 6,609,222.38

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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.