Home / 27,404,120.86-37,812,879.70-15,638,017.12

Finding the Fourth Proportional to 27,404,120.86, 37,812,879.70 and 15,638,017.12

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Solution

The fourth proportional to 27,404,120.86, 37,812,879.70 and 15,638,017.12 is: 21,577,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,404,120.86 : 37,812,879.70 = 15,638,017.12 : x
  2. Step 2: Convert to fraction form
    27,404,120.86/37,812,879.70 = 15,638,017.12/x
  3. Step 3: Cross multiply
    27,404,120.86x = 37,812,879.70 × 15,638,017.12
  4. Step 4: Simplify right side
    27,404,120.86x = 591,318,460,105,100.50
  5. Step 5: Solve for x
    x = 591,318,460,105,100.50/27,404,120.86
  6. Step 6: Final answer
    x = 21,577,720.49

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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.