Home / 20,730,006.20-31,072,199.70-7,259,900.60

Finding the Fourth Proportional to 20,730,006.20, 31,072,199.70 and 7,259,900.60

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Solution

The fourth proportional to 20,730,006.20, 31,072,199.70 and 7,259,900.60 is: 10,881,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,006.20 : 31,072,199.70 = 7,259,900.60 : x
  2. Step 2: Convert to fraction form
    20,730,006.20/31,072,199.70 = 7,259,900.60/x
  3. Step 3: Cross multiply
    20,730,006.20x = 31,072,199.70 × 7,259,900.60
  4. Step 4: Simplify right side
    20,730,006.20x = 225,581,081,245,349.81
  5. Step 5: Solve for x
    x = 225,581,081,245,349.81/20,730,006.20
  6. Step 6: Final answer
    x = 10,881,862.70

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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.