Home / 78,267,419.26-108,019,003.06-47,327,809.98

Finding the Fourth Proportional to 78,267,419.26, 108,019,003.06 and 47,327,809.98

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Solution

The fourth proportional to 78,267,419.26, 108,019,003.06 and 47,327,809.98 is: 65,318,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,267,419.26 : 108,019,003.06 = 47,327,809.98 : x
  2. Step 2: Convert to fraction form
    78,267,419.26/108,019,003.06 = 47,327,809.98/x
  3. Step 3: Cross multiply
    78,267,419.26x = 108,019,003.06 × 47,327,809.98
  4. Step 4: Simplify right side
    78,267,419.26x = 5,112,302,851,052,718
  5. Step 5: Solve for x
    x = 5,112,302,851,052,718/78,267,419.26
  6. Step 6: Final answer
    x = 65,318,403.23

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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.