Home / 15,301,205.68-21,115,801.56-8,425,715.44

Finding the Fourth Proportional to 15,301,205.68, 21,115,801.56 and 8,425,715.44

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Solution

The fourth proportional to 15,301,205.68, 21,115,801.56 and 8,425,715.44 is: 11,627,563.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301,205.68 : 21,115,801.56 = 8,425,715.44 : x
  2. Step 2: Convert to fraction form
    15,301,205.68/21,115,801.56 = 8,425,715.44/x
  3. Step 3: Cross multiply
    15,301,205.68x = 21,115,801.56 × 8,425,715.44
  4. Step 4: Simplify right side
    15,301,205.68x = 177,915,735,232,068.06
  5. Step 5: Solve for x
    x = 177,915,735,232,068.06/15,301,205.68
  6. Step 6: Final answer
    x = 11,627,563.14

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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.