Home / 10,972,820.40-16,459,230.60-7,146,445.20

Finding the Fourth Proportional to 10,972,820.40, 16,459,230.60 and 7,146,445.20

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Solution

The fourth proportional to 10,972,820.40, 16,459,230.60 and 7,146,445.20 is: 10,719,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972,820.40 : 16,459,230.60 = 7,146,445.20 : x
  2. Step 2: Convert to fraction form
    10,972,820.40/16,459,230.60 = 7,146,445.20/x
  3. Step 3: Cross multiply
    10,972,820.40x = 16,459,230.60 × 7,146,445.20
  4. Step 4: Simplify right side
    10,972,820.40x = 117,624,989,517,063.12
  5. Step 5: Solve for x
    x = 117,624,989,517,063.12/10,972,820.40
  6. Step 6: Final answer
    x = 10,719,667.80

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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.