Home / 1,187,158,614.44-1,638,272,853.09-658,517,127.53

Finding the Fourth Proportional to 1,187,158,614.44, 1,638,272,853.09 and 658,517,127.53

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Solution

The fourth proportional to 1,187,158,614.44, 1,638,272,853.09 and 658,517,127.53 is: 908,750,288.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,158,614.44 : 1,638,272,853.09 = 658,517,127.53 : x
  2. Step 2: Convert to fraction form
    1,187,158,614.44/1,638,272,853.09 = 658,517,127.53/x
  3. Step 3: Cross multiply
    1,187,158,614.44x = 1,638,272,853.09 × 658,517,127.53
  4. Step 4: Simplify right side
    1,187,158,614.44x = 1,078,830,733,319,012,992
  5. Step 5: Solve for x
    x = 1,078,830,733,319,012,992/1,187,158,614.44
  6. Step 6: Final answer
    x = 908,750,288.46

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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.