Home / 124,448,002.70-186,672,004.05-81,449,833.10

Finding the Fourth Proportional to 124,448,002.70, 186,672,004.05 and 81,449,833.10

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Solution

The fourth proportional to 124,448,002.70, 186,672,004.05 and 81,449,833.10 is: 122,174,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,448,002.70 : 186,672,004.05 = 81,449,833.10 : x
  2. Step 2: Convert to fraction form
    124,448,002.70/186,672,004.05 = 81,449,833.10/x
  3. Step 3: Cross multiply
    124,448,002.70x = 186,672,004.05 × 81,449,833.10
  4. Step 4: Simplify right side
    124,448,002.70x = 15,204,403,574,315,024
  5. Step 5: Solve for x
    x = 15,204,403,574,315,024/124,448,002.70
  6. Step 6: Final answer
    x = 122,174,749.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.