Home / 130,821,243.03-180,541,357.34-72,083,892.78

Finding the Fourth Proportional to 130,821,243.03, 180,541,357.34 and 72,083,892.78

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Solution

The fourth proportional to 130,821,243.03, 180,541,357.34 and 72,083,892.78 is: 99,480,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,821,243.03 : 180,541,357.34 = 72,083,892.78 : x
  2. Step 2: Convert to fraction form
    130,821,243.03/180,541,357.34 = 72,083,892.78/x
  3. Step 3: Cross multiply
    130,821,243.03x = 180,541,357.34 × 72,083,892.78
  4. Step 4: Simplify right side
    130,821,243.03x = 13,014,123,844,491,808
  5. Step 5: Solve for x
    x = 13,014,123,844,491,808/130,821,243.03
  6. Step 6: Final answer
    x = 99,480,203.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.