Home / 302,206,619.20-453,309,928.80-278,020,148.80

Finding the Fourth Proportional to 302,206,619.20, 453,309,928.80 and 278,020,148.80

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Solution

The fourth proportional to 302,206,619.20, 453,309,928.80 and 278,020,148.80 is: 417,030,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,206,619.20 : 453,309,928.80 = 278,020,148.80 : x
  2. Step 2: Convert to fraction form
    302,206,619.20/453,309,928.80 = 278,020,148.80/x
  3. Step 3: Cross multiply
    302,206,619.20x = 453,309,928.80 × 278,020,148.80
  4. Step 4: Simplify right side
    302,206,619.20x = 126,029,293,857,493,408
  5. Step 5: Solve for x
    x = 126,029,293,857,493,408/302,206,619.20
  6. Step 6: Final answer
    x = 417,030,223.20

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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.