Home / 14,013,992.40-21,020,988.60-12,880,251.60

Finding the Fourth Proportional to 14,013,992.40, 21,020,988.60 and 12,880,251.60

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Solution

The fourth proportional to 14,013,992.40, 21,020,988.60 and 12,880,251.60 is: 19,320,377.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,013,992.40 : 21,020,988.60 = 12,880,251.60 : x
  2. Step 2: Convert to fraction form
    14,013,992.40/21,020,988.60 = 12,880,251.60/x
  3. Step 3: Cross multiply
    14,013,992.40x = 21,020,988.60 × 12,880,251.60
  4. Step 4: Simplify right side
    14,013,992.40x = 270,755,622,048,731.78
  5. Step 5: Solve for x
    x = 270,755,622,048,731.78/14,013,992.40
  6. Step 6: Final answer
    x = 19,320,377.40

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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.