Home / 20,730,004.20-31,072,196.70-7,259,898.60

Finding the Fourth Proportional to 20,730,004.20, 31,072,196.70 and 7,259,898.60

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Solution

The fourth proportional to 20,730,004.20, 31,072,196.70 and 7,259,898.60 is: 10,881,859.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,730,004.20 : 31,072,196.70 = 7,259,898.60 : x
  2. Step 2: Convert to fraction form
    20,730,004.20/31,072,196.70 = 7,259,898.60/x
  3. Step 3: Cross multiply
    20,730,004.20x = 31,072,196.70 × 7,259,898.60
  4. Step 4: Simplify right side
    20,730,004.20x = 225,580,997,321,254.59
  5. Step 5: Solve for x
    x = 225,580,997,321,254.59/20,730,004.20
  6. Step 6: Final answer
    x = 10,881,859.70

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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.