Home / 8,656,848.60-12,986,439.30-2,978,813.40

Finding the Fourth Proportional to 8,656,848.60, 12,986,439.30 and 2,978,813.40

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Solution

The fourth proportional to 8,656,848.60, 12,986,439.30 and 2,978,813.40 is: 4,468,621.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656,848.60 : 12,986,439.30 = 2,978,813.40 : x
  2. Step 2: Convert to fraction form
    8,656,848.60/12,986,439.30 = 2,978,813.40/x
  3. Step 3: Cross multiply
    8,656,848.60x = 12,986,439.30 × 2,978,813.40
  4. Step 4: Simplify right side
    8,656,848.60x = 38,684,179,405,126.62
  5. Step 5: Solve for x
    x = 38,684,179,405,126.62/8,656,848.60
  6. Step 6: Final answer
    x = 4,468,621.46

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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.