Home / 15,848,314.80-21,870,755.10-8,974,136.40

Finding the Fourth Proportional to 15,848,314.80, 21,870,755.10 and 8,974,136.40

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Solution

The fourth proportional to 15,848,314.80, 21,870,755.10 and 8,974,136.40 is: 12,384,353.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,848,314.80 : 21,870,755.10 = 8,974,136.40 : x
  2. Step 2: Convert to fraction form
    15,848,314.80/21,870,755.10 = 8,974,136.40/x
  3. Step 3: Cross multiply
    15,848,314.80x = 21,870,755.10 × 8,974,136.40
  4. Step 4: Simplify right side
    15,848,314.80x = 196,271,139,438,395.66
  5. Step 5: Solve for x
    x = 196,271,139,438,395.66/15,848,314.80
  6. Step 6: Final answer
    x = 12,384,353.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.