Home / 767,248,808.63-1,058,801,364.42-428,153,728.71

Finding the Fourth Proportional to 767,248,808.63, 1,058,801,364.42 and 428,153,728.71

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Solution

The fourth proportional to 767,248,808.63, 1,058,801,364.42 and 428,153,728.71 is: 590,851,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,248,808.63 : 1,058,801,364.42 = 428,153,728.71 : x
  2. Step 2: Convert to fraction form
    767,248,808.63/1,058,801,364.42 = 428,153,728.71/x
  3. Step 3: Cross multiply
    767,248,808.63x = 1,058,801,364.42 × 428,153,728.71
  4. Step 4: Simplify right side
    767,248,808.63x = 453,329,752,139,658,496
  5. Step 5: Solve for x
    x = 453,329,752,139,658,496/767,248,808.63
  6. Step 6: Final answer
    x = 590,851,034.30

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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.