Home / 120,452,911.20-180,480,301.20-102,537,007.20

Finding the Fourth Proportional to 120,452,911.20, 180,480,301.20 and 102,537,007.20

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Solution

The fourth proportional to 120,452,911.20, 180,480,301.20 and 102,537,007.20 is: 153,636,053.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,452,911.20 : 180,480,301.20 = 102,537,007.20 : x
  2. Step 2: Convert to fraction form
    120,452,911.20/180,480,301.20 = 102,537,007.20/x
  3. Step 3: Cross multiply
    120,452,911.20x = 180,480,301.20 × 102,537,007.20
  4. Step 4: Simplify right side
    120,452,911.20x = 18,505,909,943,602,568
  5. Step 5: Solve for x
    x = 18,505,909,943,602,568/120,452,911.20
  6. Step 6: Final answer
    x = 153,636,053.78

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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.