Home / 72,072,643.29-108,127,380.84-20,954,662.10

Finding the Fourth Proportional to 72,072,643.29, 108,127,380.84 and 20,954,662.10

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Solution

The fourth proportional to 72,072,643.29, 108,127,380.84 and 20,954,662.10 is: 31,437,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,072,643.29 : 108,127,380.84 = 20,954,662.10 : x
  2. Step 2: Convert to fraction form
    72,072,643.29/108,127,380.84 = 20,954,662.10/x
  3. Step 3: Cross multiply
    72,072,643.29x = 108,127,380.84 × 20,954,662.10
  4. Step 4: Simplify right side
    72,072,643.29x = 2,265,772,729,046,475
  5. Step 5: Solve for x
    x = 2,265,772,729,046,475/72,072,643.29
  6. Step 6: Final answer
    x = 31,437,347.46

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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.