Home / 78,058,326.06-117,087,751.80-19,765,976.22

Finding the Fourth Proportional to 78,058,326.06, 117,087,751.80 and 19,765,976.22

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Solution

The fourth proportional to 78,058,326.06, 117,087,751.80 and 19,765,976.22 is: 29,649,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,058,326.06 : 117,087,751.80 = 19,765,976.22 : x
  2. Step 2: Convert to fraction form
    78,058,326.06/117,087,751.80 = 19,765,976.22/x
  3. Step 3: Cross multiply
    78,058,326.06x = 117,087,751.80 × 19,765,976.22
  4. Step 4: Simplify right side
    78,058,326.06x = 2,314,353,717,732,062
  5. Step 5: Solve for x
    x = 2,314,353,717,732,062/78,058,326.06
  6. Step 6: Final answer
    x = 29,649,030.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.