Home / 18,256,902.78-25,195,313.10-10,108,140.78

Finding the Fourth Proportional to 18,256,902.78, 25,195,313.10 and 10,108,140.78

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Solution

The fourth proportional to 18,256,902.78, 25,195,313.10 and 10,108,140.78 is: 13,949,670.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256,902.78 : 25,195,313.10 = 10,108,140.78 : x
  2. Step 2: Convert to fraction form
    18,256,902.78/25,195,313.10 = 10,108,140.78/x
  3. Step 3: Cross multiply
    18,256,902.78x = 25,195,313.10 × 10,108,140.78
  4. Step 4: Simplify right side
    18,256,902.78x = 254,677,771,810,978.22
  5. Step 5: Solve for x
    x = 254,677,771,810,978.22/18,256,902.78
  6. Step 6: Final answer
    x = 13,949,670.15

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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.