Home / 1,215,179,827.90-1,677,217,937.90-738,768,965.65

Finding the Fourth Proportional to 1,215,179,827.90, 1,677,217,937.90 and 738,768,965.65

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Solution

The fourth proportional to 1,215,179,827.90, 1,677,217,937.90 and 738,768,965.65 is: 1,019,665,182.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,179,827.90 : 1,677,217,937.90 = 738,768,965.65 : x
  2. Step 2: Convert to fraction form
    1,215,179,827.90/1,677,217,937.90 = 738,768,965.65/x
  3. Step 3: Cross multiply
    1,215,179,827.90x = 1,677,217,937.90 × 738,768,965.65
  4. Step 4: Simplify right side
    1,215,179,827.90x = 1,239,076,561,144,122,112
  5. Step 5: Solve for x
    x = 1,239,076,561,144,122,112/1,215,179,827.90
  6. Step 6: Final answer
    x = 1,019,665,182.63

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Double scale
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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.