Home / 302,206,643.70-453,309,965.55-278,020,173.30

Finding the Fourth Proportional to 302,206,643.70, 453,309,965.55 and 278,020,173.30

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Solution

The fourth proportional to 302,206,643.70, 453,309,965.55 and 278,020,173.30 is: 417,030,259.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,206,643.70 : 453,309,965.55 = 278,020,173.30 : x
  2. Step 2: Convert to fraction form
    302,206,643.70/453,309,965.55 = 278,020,173.30/x
  3. Step 3: Cross multiply
    302,206,643.70x = 453,309,965.55 × 278,020,173.30
  4. Step 4: Simplify right side
    302,206,643.70x = 126,029,315,180,828,032
  5. Step 5: Solve for x
    x = 126,029,315,180,828,032/302,206,643.70
  6. Step 6: Final answer
    x = 417,030,259.95

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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.