Home / 12,407,618.40-18,611,434.08-3,888,618.36

Finding the Fourth Proportional to 12,407,618.40, 18,611,434.08 and 3,888,618.36

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Solution

The fourth proportional to 12,407,618.40, 18,611,434.08 and 3,888,618.36 is: 5,832,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407,618.40 : 18,611,434.08 = 3,888,618.36 : x
  2. Step 2: Convert to fraction form
    12,407,618.40/18,611,434.08 = 3,888,618.36/x
  3. Step 3: Cross multiply
    12,407,618.40x = 18,611,434.08 × 3,888,618.36
  4. Step 4: Simplify right side
    12,407,618.40x = 72,372,764,269,417.70
  5. Step 5: Solve for x
    x = 72,372,764,269,417.70/12,407,618.40
  6. Step 6: Final answer
    x = 5,832,929.57

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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.