Home / 120,452,912.20-180,480,302.70-102,537,008.20

Finding the Fourth Proportional to 120,452,912.20, 180,480,302.70 and 102,537,008.20

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Solution

The fourth proportional to 120,452,912.20, 180,480,302.70 and 102,537,008.20 is: 153,636,055.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,452,912.20 : 180,480,302.70 = 102,537,008.20 : x
  2. Step 2: Convert to fraction form
    120,452,912.20/180,480,302.70 = 102,537,008.20/x
  3. Step 3: Cross multiply
    120,452,912.20x = 180,480,302.70 × 102,537,008.20
  4. Step 4: Simplify right side
    120,452,912.20x = 18,505,910,277,888,380
  5. Step 5: Solve for x
    x = 18,505,910,277,888,380/120,452,912.20
  6. Step 6: Final answer
    x = 153,636,055.28

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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.