Home / 8,643,986.40-12,968,221.20-4,597,146.48

Finding the Fourth Proportional to 8,643,986.40, 12,968,221.20 and 4,597,146.48

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Solution

The fourth proportional to 8,643,986.40, 12,968,221.20 and 4,597,146.48 is: 6,896,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643,986.40 : 12,968,221.20 = 4,597,146.48 : x
  2. Step 2: Convert to fraction form
    8,643,986.40/12,968,221.20 = 4,597,146.48/x
  3. Step 3: Cross multiply
    8,643,986.40x = 12,968,221.20 × 4,597,146.48
  4. Step 4: Simplify right side
    8,643,986.40x = 59,616,812,441,441.38
  5. Step 5: Solve for x
    x = 59,616,812,441,441.38/8,643,986.40
  6. Step 6: Final answer
    x = 6,896,911.87

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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.