Home / 15,855,145.75-21,880,123.01-8,611,801.75

Finding the Fourth Proportional to 15,855,145.75, 21,880,123.01 and 8,611,801.75

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Solution

The fourth proportional to 15,855,145.75, 21,880,123.01 and 8,611,801.75 is: 11,884,298.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855,145.75 : 21,880,123.01 = 8,611,801.75 : x
  2. Step 2: Convert to fraction form
    15,855,145.75/21,880,123.01 = 8,611,801.75/x
  3. Step 3: Cross multiply
    15,855,145.75x = 21,880,123.01 × 8,611,801.75
  4. Step 4: Simplify right side
    15,855,145.75x = 188,427,281,627,733.28
  5. Step 5: Solve for x
    x = 188,427,281,627,733.28/15,855,145.75
  6. Step 6: Final answer
    x = 11,884,298.30

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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.