Home / 8,521,946.90-12,766,331.55-5,146,126.10

Finding the Fourth Proportional to 8,521,946.90, 12,766,331.55 and 5,146,126.10

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Solution

The fourth proportional to 8,521,946.90, 12,766,331.55 and 5,146,126.10 is: 7,709,171.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521,946.90 : 12,766,331.55 = 5,146,126.10 : x
  2. Step 2: Convert to fraction form
    8,521,946.90/12,766,331.55 = 5,146,126.10/x
  3. Step 3: Cross multiply
    8,521,946.90x = 12,766,331.55 × 5,146,126.10
  4. Step 4: Simplify right side
    8,521,946.90x = 65,697,151,990,708.45
  5. Step 5: Solve for x
    x = 65,697,151,990,708.45/8,521,946.90
  6. Step 6: Final answer
    x = 7,709,171.71

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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.