Home / 302,206,687.20-453,310,030.80-278,020,216.80

Finding the Fourth Proportional to 302,206,687.20, 453,310,030.80 and 278,020,216.80

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Solution

The fourth proportional to 302,206,687.20, 453,310,030.80 and 278,020,216.80 is: 417,030,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,206,687.20 : 453,310,030.80 = 278,020,216.80 : x
  2. Step 2: Convert to fraction form
    302,206,687.20/453,310,030.80 = 278,020,216.80/x
  3. Step 3: Cross multiply
    302,206,687.20x = 453,310,030.80 × 278,020,216.80
  4. Step 4: Simplify right side
    302,206,687.20x = 126,029,353,040,630,688
  5. Step 5: Solve for x
    x = 126,029,353,040,630,688/302,206,687.20
  6. Step 6: Final answer
    x = 417,030,325.20

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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.