Home / 154,550,400.80-231,825,601.20-138,426,087.20

Finding the Fourth Proportional to 154,550,400.80, 231,825,601.20 and 138,426,087.20

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Solution

The fourth proportional to 154,550,400.80, 231,825,601.20 and 138,426,087.20 is: 207,639,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,550,400.80 : 231,825,601.20 = 138,426,087.20 : x
  2. Step 2: Convert to fraction form
    154,550,400.80/231,825,601.20 = 138,426,087.20/x
  3. Step 3: Cross multiply
    154,550,400.80x = 231,825,601.20 × 138,426,087.20
  4. Step 4: Simplify right side
    154,550,400.80x = 32,090,710,886,903,620
  5. Step 5: Solve for x
    x = 32,090,710,886,903,620/154,550,400.80
  6. Step 6: Final answer
    x = 207,639,130.80

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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.