Home / 8,587,989.30-12,881,975.67-2,198,231.40

Finding the Fourth Proportional to 8,587,989.30, 12,881,975.67 and 2,198,231.40

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Solution

The fourth proportional to 8,587,989.30, 12,881,975.67 and 2,198,231.40 is: 3,297,344.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587,989.30 : 12,881,975.67 = 2,198,231.40 : x
  2. Step 2: Convert to fraction form
    8,587,989.30/12,881,975.67 = 2,198,231.40/x
  3. Step 3: Cross multiply
    8,587,989.30x = 12,881,975.67 × 2,198,231.40
  4. Step 4: Simplify right side
    8,587,989.30x = 28,317,563,411,830.04
  5. Step 5: Solve for x
    x = 28,317,563,411,830.04/8,587,989.30
  6. Step 6: Final answer
    x = 3,297,344.98

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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.