Home / 302,179,555.20-453,269,332.80-278,370,998.40

Finding the Fourth Proportional to 302,179,555.20, 453,269,332.80 and 278,370,998.40

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Solution

The fourth proportional to 302,179,555.20, 453,269,332.80 and 278,370,998.40 is: 417,556,497.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,179,555.20 : 453,269,332.80 = 278,370,998.40 : x
  2. Step 2: Convert to fraction form
    302,179,555.20/453,269,332.80 = 278,370,998.40/x
  3. Step 3: Cross multiply
    302,179,555.20x = 453,269,332.80 × 278,370,998.40
  4. Step 4: Simplify right side
    302,179,555.20x = 126,177,036,715,637,856
  5. Step 5: Solve for x
    x = 126,177,036,715,637,856/302,179,555.20
  6. Step 6: Final answer
    x = 417,556,497.60

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1.5x scale

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.