Home / 14,946,732.88-20,626,554.36-8,420,440.57

Finding the Fourth Proportional to 14,946,732.88, 20,626,554.36 and 8,420,440.57

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Solution

The fourth proportional to 14,946,732.88, 20,626,554.36 and 8,420,440.57 is: 11,620,243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,946,732.88 : 20,626,554.36 = 8,420,440.57 : x
  2. Step 2: Convert to fraction form
    14,946,732.88/20,626,554.36 = 8,420,440.57/x
  3. Step 3: Cross multiply
    14,946,732.88x = 20,626,554.36 × 8,420,440.57
  4. Step 4: Simplify right side
    14,946,732.88x = 173,684,675,152,254.38
  5. Step 5: Solve for x
    x = 173,684,675,152,254.38/14,946,732.88
  6. Step 6: Final answer
    x = 11,620,243.47

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1.5x scale

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.