Home / 205,079,139.40-307,760,426.70-147,620,525.80

Finding the Fourth Proportional to 205,079,139.40, 307,760,426.70 and 147,620,525.80

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Solution

The fourth proportional to 205,079,139.40, 307,760,426.70 and 147,620,525.80 is: 221,532,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,079,139.40 : 307,760,426.70 = 147,620,525.80 : x
  2. Step 2: Convert to fraction form
    205,079,139.40/307,760,426.70 = 147,620,525.80/x
  3. Step 3: Cross multiply
    205,079,139.40x = 307,760,426.70 × 147,620,525.80
  4. Step 4: Simplify right side
    205,079,139.40x = 45,431,756,009,886,360
  5. Step 5: Solve for x
    x = 45,431,756,009,886,360/205,079,139.40
  6. Step 6: Final answer
    x = 221,532,800.18

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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.