Home / 122,729,473.82-169,370,271.27-66,978,478.82

Finding the Fourth Proportional to 122,729,473.82, 169,370,271.27 and 66,978,478.82

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Solution

The fourth proportional to 122,729,473.82, 169,370,271.27 and 66,978,478.82 is: 92,432,264.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,729,473.82 : 169,370,271.27 = 66,978,478.82 : x
  2. Step 2: Convert to fraction form
    122,729,473.82/169,370,271.27 = 66,978,478.82/x
  3. Step 3: Cross multiply
    122,729,473.82x = 169,370,271.27 × 66,978,478.82
  4. Step 4: Simplify right side
    122,729,473.82x = 11,344,163,127,418,776
  5. Step 5: Solve for x
    x = 11,344,163,127,418,776/122,729,473.82
  6. Step 6: Final answer
    x = 92,432,264.02

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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.