Home / 767,248,810.81-1,058,801,367.44-428,153,730.89

Finding the Fourth Proportional to 767,248,810.81, 1,058,801,367.44 and 428,153,730.89

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Solution

The fourth proportional to 767,248,810.81, 1,058,801,367.44 and 428,153,730.89 is: 590,851,037.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,248,810.81 : 1,058,801,367.44 = 428,153,730.89 : x
  2. Step 2: Convert to fraction form
    767,248,810.81/1,058,801,367.44 = 428,153,730.89/x
  3. Step 3: Cross multiply
    767,248,810.81x = 1,058,801,367.44 × 428,153,730.89
  4. Step 4: Simplify right side
    767,248,810.81x = 453,329,755,738,728,960
  5. Step 5: Solve for x
    x = 453,329,755,738,728,960/767,248,810.81
  6. Step 6: Final answer
    x = 590,851,037.31

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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.