Home / 302,179,549.20-453,269,323.80-278,370,992.40

Finding the Fourth Proportional to 302,179,549.20, 453,269,323.80 and 278,370,992.40

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Solution

The fourth proportional to 302,179,549.20, 453,269,323.80 and 278,370,992.40 is: 417,556,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,179,549.20 : 453,269,323.80 = 278,370,992.40 : x
  2. Step 2: Convert to fraction form
    302,179,549.20/453,269,323.80 = 278,370,992.40/x
  3. Step 3: Cross multiply
    302,179,549.20x = 453,269,323.80 × 278,370,992.40
  4. Step 4: Simplify right side
    302,179,549.20x = 126,177,031,490,682,928
  5. Step 5: Solve for x
    x = 126,177,031,490,682,928/302,179,549.20
  6. Step 6: Final answer
    x = 417,556,488.60

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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.