Home / 767,248,812.56-1,058,801,369.85-428,153,732.64

Finding the Fourth Proportional to 767,248,812.56, 1,058,801,369.85 and 428,153,732.64

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Solution

The fourth proportional to 767,248,812.56, 1,058,801,369.85 and 428,153,732.64 is: 590,851,039.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,248,812.56 : 1,058,801,369.85 = 428,153,732.64 : x
  2. Step 2: Convert to fraction form
    767,248,812.56/1,058,801,369.85 = 428,153,732.64/x
  3. Step 3: Cross multiply
    767,248,812.56x = 1,058,801,369.85 × 428,153,732.64
  4. Step 4: Simplify right side
    767,248,812.56x = 453,329,758,625,622,656
  5. Step 5: Solve for x
    x = 453,329,758,625,622,656/767,248,812.56
  6. Step 6: Final answer
    x = 590,851,039.72

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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.