Home / 18,715,116.60-25,812,639.90-16,105,960.08

Finding the Fourth Proportional to 18,715,116.60, 25,812,639.90 and 16,105,960.08

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Solution

The fourth proportional to 18,715,116.60, 25,812,639.90 and 16,105,960.08 is: 22,213,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715,116.60 : 25,812,639.90 = 16,105,960.08 : x
  2. Step 2: Convert to fraction form
    18,715,116.60/25,812,639.90 = 16,105,960.08/x
  3. Step 3: Cross multiply
    18,715,116.60x = 25,812,639.90 × 16,105,960.08
  4. Step 4: Simplify right side
    18,715,116.60x = 415,737,347,788,815.19
  5. Step 5: Solve for x
    x = 415,737,347,788,815.19/18,715,116.60
  6. Step 6: Final answer
    x = 22,213,986.52

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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.