Home / 1,087,668,418.80-1,631,502,628.20-269,780,719.80

Finding the Fourth Proportional to 1,087,668,418.80, 1,631,502,628.20 and 269,780,719.80

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Solution

The fourth proportional to 1,087,668,418.80, 1,631,502,628.20 and 269,780,719.80 is: 404,671,079.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,668,418.80 : 1,631,502,628.20 = 269,780,719.80 : x
  2. Step 2: Convert to fraction form
    1,087,668,418.80/1,631,502,628.20 = 269,780,719.80/x
  3. Step 3: Cross multiply
    1,087,668,418.80x = 1,631,502,628.20 × 269,780,719.80
  4. Step 4: Simplify right side
    1,087,668,418.80x = 440,147,953,391,387,840
  5. Step 5: Solve for x
    x = 440,147,953,391,387,840/1,087,668,418.80
  6. Step 6: Final answer
    x = 404,671,079.70

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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.