Home / 28,108,959.87-38,789,636.03-15,550,478.49

Finding the Fourth Proportional to 28,108,959.87, 38,789,636.03 and 15,550,478.49

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Solution

The fourth proportional to 28,108,959.87, 38,789,636.03 and 15,550,478.49 is: 21,459,257.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108,959.87 : 38,789,636.03 = 15,550,478.49 : x
  2. Step 2: Convert to fraction form
    28,108,959.87/38,789,636.03 = 15,550,478.49/x
  3. Step 3: Cross multiply
    28,108,959.87x = 38,789,636.03 × 15,550,478.49
  4. Step 4: Simplify right side
    28,108,959.87x = 603,197,400,845,467.12
  5. Step 5: Solve for x
    x = 603,197,400,845,467.12/28,108,959.87
  6. Step 6: Final answer
    x = 21,459,257.25

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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.