Home / 111,147,445.20-166,721,167.80-74,867,739.60

Finding the Fourth Proportional to 111,147,445.20, 166,721,167.80 and 74,867,739.60

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Solution

The fourth proportional to 111,147,445.20, 166,721,167.80 and 74,867,739.60 is: 112,301,609.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,147,445.20 : 166,721,167.80 = 74,867,739.60 : x
  2. Step 2: Convert to fraction form
    111,147,445.20/166,721,167.80 = 74,867,739.60/x
  3. Step 3: Cross multiply
    111,147,445.20x = 166,721,167.80 × 74,867,739.60
  4. Step 4: Simplify right side
    111,147,445.20x = 12,482,036,976,658,304
  5. Step 5: Solve for x
    x = 12,482,036,976,658,304/111,147,445.20
  6. Step 6: Final answer
    x = 112,301,609.40

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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.