Home / 40,073,729.31-55,301,852.88-21,739,014.81

Finding the Fourth Proportional to 40,073,729.31, 55,301,852.88 and 21,739,014.81

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Solution

The fourth proportional to 40,073,729.31, 55,301,852.88 and 21,739,014.81 is: 29,999,898.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,073,729.31 : 55,301,852.88 = 21,739,014.81 : x
  2. Step 2: Convert to fraction form
    40,073,729.31/55,301,852.88 = 21,739,014.81/x
  3. Step 3: Cross multiply
    40,073,729.31x = 55,301,852.88 × 21,739,014.81
  4. Step 4: Simplify right side
    40,073,729.31x = 1,202,207,798,778,761.25
  5. Step 5: Solve for x
    x = 1,202,207,798,778,761.25/40,073,729.31
  6. Step 6: Final answer
    x = 29,999,898.17

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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.