Home / 10,294,211.20-15,436,039.30-5,439,128.60

Finding the Fourth Proportional to 10,294,211.20, 15,436,039.30 and 5,439,128.60

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Solution

The fourth proportional to 10,294,211.20, 15,436,039.30 and 5,439,128.60 is: 8,155,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,294,211.20 : 15,436,039.30 = 5,439,128.60 : x
  2. Step 2: Convert to fraction form
    10,294,211.20/15,436,039.30 = 5,439,128.60/x
  3. Step 3: Cross multiply
    10,294,211.20x = 15,436,039.30 × 5,439,128.60
  4. Step 4: Simplify right side
    10,294,211.20x = 83,958,602,827,353.98
  5. Step 5: Solve for x
    x = 83,958,602,827,353.98/10,294,211.20
  6. Step 6: Final answer
    x = 8,155,904.44

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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.