Home / 145,512,620.40-218,268,930.60-68,985,116.40

Finding the Fourth Proportional to 145,512,620.40, 218,268,930.60 and 68,985,116.40

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Solution

The fourth proportional to 145,512,620.40, 218,268,930.60 and 68,985,116.40 is: 103,477,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,512,620.40 : 218,268,930.60 = 68,985,116.40 : x
  2. Step 2: Convert to fraction form
    145,512,620.40/218,268,930.60 = 68,985,116.40/x
  3. Step 3: Cross multiply
    145,512,620.40x = 218,268,930.60 × 68,985,116.40
  4. Step 4: Simplify right side
    145,512,620.40x = 15,057,307,583,944,522
  5. Step 5: Solve for x
    x = 15,057,307,583,944,522/145,512,620.40
  6. Step 6: Final answer
    x = 103,477,674.60

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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.