Home / 148,003,108.28-221,914,763.78-74,140,988.52

Finding the Fourth Proportional to 148,003,108.28, 221,914,763.78 and 74,140,988.52

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Solution

The fourth proportional to 148,003,108.28, 221,914,763.78 and 74,140,988.52 is: 111,166,448.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,003,108.28 : 221,914,763.78 = 74,140,988.52 : x
  2. Step 2: Convert to fraction form
    148,003,108.28/221,914,763.78 = 74,140,988.52/x
  3. Step 3: Cross multiply
    148,003,108.28x = 221,914,763.78 × 74,140,988.52
  4. Step 4: Simplify right side
    148,003,108.28x = 16,452,979,953,460,786
  5. Step 5: Solve for x
    x = 16,452,979,953,460,786/148,003,108.28
  6. Step 6: Final answer
    x = 111,166,448.77

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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.