Home / 66,084,947.67-99,116,426.82-20,015,863.58

Finding the Fourth Proportional to 66,084,947.67, 99,116,426.82 and 20,015,863.58

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Solution

The fourth proportional to 66,084,947.67, 99,116,426.82 and 20,015,863.58 is: 30,020,465.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,084,947.67 : 99,116,426.82 = 20,015,863.58 : x
  2. Step 2: Convert to fraction form
    66,084,947.67/99,116,426.82 = 20,015,863.58/x
  3. Step 3: Cross multiply
    66,084,947.67x = 99,116,426.82 × 20,015,863.58
  4. Step 4: Simplify right side
    66,084,947.67x = 1,983,900,878,089,023.75
  5. Step 5: Solve for x
    x = 1,983,900,878,089,023.75/66,084,947.67
  6. Step 6: Final answer
    x = 30,020,465.29

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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.