Home / 9,985,489.70-13,779,929.13-5,401,770.98

Finding the Fourth Proportional to 9,985,489.70, 13,779,929.13 and 5,401,770.98

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Solution

The fourth proportional to 9,985,489.70, 13,779,929.13 and 5,401,770.98 is: 7,454,418.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985,489.70 : 13,779,929.13 = 5,401,770.98 : x
  2. Step 2: Convert to fraction form
    9,985,489.70/13,779,929.13 = 5,401,770.98/x
  3. Step 3: Cross multiply
    9,985,489.70x = 13,779,929.13 × 5,401,770.98
  4. Step 4: Simplify right side
    9,985,489.70x = 74,436,021,280,890.66
  5. Step 5: Solve for x
    x = 74,436,021,280,890.66/9,985,489.70
  6. Step 6: Final answer
    x = 7,454,418.71

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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.