Home / 20,730,005.20-31,072,198.20-7,259,899.60

Finding the Fourth Proportional to 20,730,005.20, 31,072,198.20 and 7,259,899.60

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Solution

The fourth proportional to 20,730,005.20, 31,072,198.20 and 7,259,899.60 is: 10,881,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,005.20 : 31,072,198.20 = 7,259,899.60 : x
  2. Step 2: Convert to fraction form
    20,730,005.20/31,072,198.20 = 7,259,899.60/x
  3. Step 3: Cross multiply
    20,730,005.20x = 31,072,198.20 × 7,259,899.60
  4. Step 4: Simplify right side
    20,730,005.20x = 225,581,039,283,300.69
  5. Step 5: Solve for x
    x = 225,581,039,283,300.69/20,730,005.20
  6. Step 6: Final answer
    x = 10,881,861.20

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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.