Home / 1,111,428,004.20-1,667,142,006.30-293,540,305.20

Finding the Fourth Proportional to 1,111,428,004.20, 1,667,142,006.30 and 293,540,305.20

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Solution

The fourth proportional to 1,111,428,004.20, 1,667,142,006.30 and 293,540,305.20 is: 440,310,457.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,428,004.20 : 1,667,142,006.30 = 293,540,305.20 : x
  2. Step 2: Convert to fraction form
    1,111,428,004.20/1,667,142,006.30 = 293,540,305.20/x
  3. Step 3: Cross multiply
    1,111,428,004.20x = 1,667,142,006.30 × 293,540,305.20
  4. Step 4: Simplify right side
    1,111,428,004.20x = 489,373,373,341,042,304
  5. Step 5: Solve for x
    x = 489,373,373,341,042,304/1,111,428,004.20
  6. Step 6: Final answer
    x = 440,310,457.80

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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.