Home / 326,649,939.20-489,974,908.80-144,897,117.20

Finding the Fourth Proportional to 326,649,939.20, 489,974,908.80 and 144,897,117.20

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Solution

The fourth proportional to 326,649,939.20, 489,974,908.80 and 144,897,117.20 is: 217,345,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,649,939.20 : 489,974,908.80 = 144,897,117.20 : x
  2. Step 2: Convert to fraction form
    326,649,939.20/489,974,908.80 = 144,897,117.20/x
  3. Step 3: Cross multiply
    326,649,939.20x = 489,974,908.80 × 144,897,117.20
  4. Step 4: Simplify right side
    326,649,939.20x = 70,995,951,785,452,904
  5. Step 5: Solve for x
    x = 70,995,951,785,452,904/326,649,939.20
  6. Step 6: Final answer
    x = 217,345,675.80

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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.