Home / 78,579,975.75-108,485,314.86-52,154,165.58

Finding the Fourth Proportional to 78,579,975.75, 108,485,314.86 and 52,154,165.58

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Solution

The fourth proportional to 78,579,975.75, 108,485,314.86 and 52,154,165.58 is: 72,002,581.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,579,975.75 : 108,485,314.86 = 52,154,165.58 : x
  2. Step 2: Convert to fraction form
    78,579,975.75/108,485,314.86 = 52,154,165.58/x
  3. Step 3: Cross multiply
    78,579,975.75x = 108,485,314.86 × 52,154,165.58
  4. Step 4: Simplify right side
    78,579,975.75x = 5,657,961,073,946,104
  5. Step 5: Solve for x
    x = 5,657,961,073,946,104/78,579,975.75
  6. Step 6: Final answer
    x = 72,002,581.06

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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.