Home / 783,428,769.32-1,081,131,694.88-430,997,196.65

Finding the Fourth Proportional to 783,428,769.32, 1,081,131,694.88 and 430,997,196.65

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Solution

The fourth proportional to 783,428,769.32, 1,081,131,694.88 and 430,997,196.65 is: 594,776,127.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,428,769.32 : 1,081,131,694.88 = 430,997,196.65 : x
  2. Step 2: Convert to fraction form
    783,428,769.32/1,081,131,694.88 = 430,997,196.65/x
  3. Step 3: Cross multiply
    783,428,769.32x = 1,081,131,694.88 × 430,997,196.65
  4. Step 4: Simplify right side
    783,428,769.32x = 465,964,729,695,182,464
  5. Step 5: Solve for x
    x = 465,964,729,695,182,464/783,428,769.32
  6. Step 6: Final answer
    x = 594,776,127.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.