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Finding the Fourth Proportional to 273,486,565.80, 410,130,315.90 and 137,126,629.80

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Solution

The fourth proportional to 273,486,565.80, 410,130,315.90 and 137,126,629.80 is: 205,640,038.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,486,565.80 : 410,130,315.90 = 137,126,629.80 : x
  2. Step 2: Convert to fraction form
    273,486,565.80/410,130,315.90 = 137,126,629.80/x
  3. Step 3: Cross multiply
    273,486,565.80x = 410,130,315.90 × 137,126,629.80
  4. Step 4: Simplify right side
    273,486,565.80x = 56,239,787,998,176,352
  5. Step 5: Solve for x
    x = 56,239,787,998,176,352/273,486,565.80
  6. Step 6: Final answer
    x = 205,640,038.78

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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.