Home / 12,443,999.70-18,665,999.55-3,926,946.90

Finding the Fourth Proportional to 12,443,999.70, 18,665,999.55 and 3,926,946.90

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Solution

The fourth proportional to 12,443,999.70, 18,665,999.55 and 3,926,946.90 is: 5,890,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,443,999.70 : 18,665,999.55 = 3,926,946.90 : x
  2. Step 2: Convert to fraction form
    12,443,999.70/18,665,999.55 = 3,926,946.90/x
  3. Step 3: Cross multiply
    12,443,999.70x = 18,665,999.55 × 3,926,946.90
  4. Step 4: Simplify right side
    12,443,999.70x = 73,300,389,068,273.89
  5. Step 5: Solve for x
    x = 73,300,389,068,273.89/12,443,999.70
  6. Step 6: Final answer
    x = 5,890,420.35

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1.5x scale

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.