Home / 66,371,734.40-99,557,601.60-20,938,121.60

Finding the Fourth Proportional to 66,371,734.40, 99,557,601.60 and 20,938,121.60

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Solution

The fourth proportional to 66,371,734.40, 99,557,601.60 and 20,938,121.60 is: 31,407,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,371,734.40 : 99,557,601.60 = 20,938,121.60 : x
  2. Step 2: Convert to fraction form
    66,371,734.40/99,557,601.60 = 20,938,121.60/x
  3. Step 3: Cross multiply
    66,371,734.40x = 99,557,601.60 × 20,938,121.60
  4. Step 4: Simplify right side
    66,371,734.40x = 2,084,549,168,505,154.50
  5. Step 5: Solve for x
    x = 2,084,549,168,505,154.50/66,371,734.40
  6. Step 6: Final answer
    x = 31,407,182.40

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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.