Home / 15,298,120-21,130,363.52-11,105,112.75

Finding the Fourth Proportional to 15,298,120, 21,130,363.52 and 11,105,112.75

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Solution

The fourth proportional to 15,298,120, 21,130,363.52 and 11,105,112.75 is: 15,338,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298,120 : 21,130,363.52 = 11,105,112.75 : x
  2. Step 2: Convert to fraction form
    15,298,120/21,130,363.52 = 11,105,112.75/x
  3. Step 3: Cross multiply
    15,298,120x = 21,130,363.52 × 11,105,112.75
  4. Step 4: Simplify right side
    15,298,120x = 234,655,069,338,086.88
  5. Step 5: Solve for x
    x = 234,655,069,338,086.88/15,298,120
  6. Step 6: Final answer
    x = 15,338,817.41

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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.