Home / 11,128,500.20-16,692,750.30-9,215,312.60

Finding the Fourth Proportional to 11,128,500.20, 16,692,750.30 and 9,215,312.60

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Solution

The fourth proportional to 11,128,500.20, 16,692,750.30 and 9,215,312.60 is: 13,822,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128,500.20 : 16,692,750.30 = 9,215,312.60 : x
  2. Step 2: Convert to fraction form
    11,128,500.20/16,692,750.30 = 9,215,312.60/x
  3. Step 3: Cross multiply
    11,128,500.20x = 16,692,750.30 × 9,215,312.60
  4. Step 4: Simplify right side
    11,128,500.20x = 153,828,912,168,243.78
  5. Step 5: Solve for x
    x = 153,828,912,168,243.78/11,128,500.20
  6. Step 6: Final answer
    x = 13,822,968.90

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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.