Home / 20,298,371.56-28,012,137.06-11,130,467.56

Finding the Fourth Proportional to 20,298,371.56, 28,012,137.06 and 11,130,467.56

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Solution

The fourth proportional to 20,298,371.56, 28,012,137.06 and 11,130,467.56 is: 15,360,255.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298,371.56 : 28,012,137.06 = 11,130,467.56 : x
  2. Step 2: Convert to fraction form
    20,298,371.56/28,012,137.06 = 11,130,467.56/x
  3. Step 3: Cross multiply
    20,298,371.56x = 28,012,137.06 × 11,130,467.56
  4. Step 4: Simplify right side
    20,298,371.56x = 311,788,182,832,603.75
  5. Step 5: Solve for x
    x = 311,788,182,832,603.75/20,298,371.56
  6. Step 6: Final answer
    x = 15,360,255.96

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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.