Home / 19,687,638.80-29,531,458.20-12,089,968.40

Finding the Fourth Proportional to 19,687,638.80, 29,531,458.20 and 12,089,968.40

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Solution

The fourth proportional to 19,687,638.80, 29,531,458.20 and 12,089,968.40 is: 18,134,952.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,687,638.80 : 29,531,458.20 = 12,089,968.40 : x
  2. Step 2: Convert to fraction form
    19,687,638.80/29,531,458.20 = 12,089,968.40/x
  3. Step 3: Cross multiply
    19,687,638.80x = 29,531,458.20 × 12,089,968.40
  4. Step 4: Simplify right side
    19,687,638.80x = 357,034,396,443,920.88
  5. Step 5: Solve for x
    x = 357,034,396,443,920.88/19,687,638.80
  6. Step 6: Final answer
    x = 18,134,952.60

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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.