Home / 767,248,808.15-1,058,801,363.77-428,153,728.24

Finding the Fourth Proportional to 767,248,808.15, 1,058,801,363.77 and 428,153,728.24

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Solution

The fourth proportional to 767,248,808.15, 1,058,801,363.77 and 428,153,728.24 is: 590,851,033.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,248,808.15 : 1,058,801,363.77 = 428,153,728.24 : x
  2. Step 2: Convert to fraction form
    767,248,808.15/1,058,801,363.77 = 428,153,728.24/x
  3. Step 3: Cross multiply
    767,248,808.15x = 1,058,801,363.77 × 428,153,728.24
  4. Step 4: Simplify right side
    767,248,808.15x = 453,329,751,364,777,984
  5. Step 5: Solve for x
    x = 453,329,751,364,777,984/767,248,808.15
  6. Step 6: Final answer
    x = 590,851,033.65

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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.