Home / 767,248,810.57-1,058,801,367.09-428,153,730.65

Finding the Fourth Proportional to 767,248,810.57, 1,058,801,367.09 and 428,153,730.65

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Solution

The fourth proportional to 767,248,810.57, 1,058,801,367.09 and 428,153,730.65 is: 590,851,036.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,248,810.57 : 1,058,801,367.09 = 428,153,730.65 : x
  2. Step 2: Convert to fraction form
    767,248,810.57/1,058,801,367.09 = 428,153,730.65/x
  3. Step 3: Cross multiply
    767,248,810.57x = 1,058,801,367.09 × 428,153,730.65
  4. Step 4: Simplify right side
    767,248,810.57x = 453,329,755,336,903,616
  5. Step 5: Solve for x
    x = 453,329,755,336,903,616/767,248,810.57
  6. Step 6: Final answer
    x = 590,851,036.97

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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.