Home / 10,069,916.40-15,069,445.20-9,219,610.80

Finding the Fourth Proportional to 10,069,916.40, 15,069,445.20 and 9,219,610.80

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Solution

The fourth proportional to 10,069,916.40, 15,069,445.20 and 9,219,610.80 is: 13,796,978.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,069,916.40 : 15,069,445.20 = 9,219,610.80 : x
  2. Step 2: Convert to fraction form
    10,069,916.40/15,069,445.20 = 9,219,610.80/x
  3. Step 3: Cross multiply
    10,069,916.40x = 15,069,445.20 × 9,219,610.80
  4. Step 4: Simplify right side
    10,069,916.40x = 138,934,419,715,928.17
  5. Step 5: Solve for x
    x = 138,934,419,715,928.17/10,069,916.40
  6. Step 6: Final answer
    x = 13,796,978.47

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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.