Home / 12,938,742.30-19,373,899.05-10,367,996.70

Finding the Fourth Proportional to 12,938,742.30, 19,373,899.05 and 10,367,996.70

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Solution

The fourth proportional to 12,938,742.30, 19,373,899.05 and 10,367,996.70 is: 15,524,578.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938,742.30 : 19,373,899.05 = 10,367,996.70 : x
  2. Step 2: Convert to fraction form
    12,938,742.30/19,373,899.05 = 10,367,996.70/x
  3. Step 3: Cross multiply
    12,938,742.30x = 19,373,899.05 × 10,367,996.70
  4. Step 4: Simplify right side
    12,938,742.30x = 200,868,521,416,533.12
  5. Step 5: Solve for x
    x = 200,868,521,416,533.12/12,938,742.30
  6. Step 6: Final answer
    x = 15,524,578.57

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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.