Home / 78,772,675.17-108,576,186.78-52,657,664.43

Finding the Fourth Proportional to 78,772,675.17, 108,576,186.78 and 52,657,664.43

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Solution

The fourth proportional to 78,772,675.17, 108,576,186.78 and 52,657,664.43 is: 72,580,604.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,772,675.17 : 108,576,186.78 = 52,657,664.43 : x
  2. Step 2: Convert to fraction form
    78,772,675.17/108,576,186.78 = 52,657,664.43/x
  3. Step 3: Cross multiply
    78,772,675.17x = 108,576,186.78 × 52,657,664.43
  4. Step 4: Simplify right side
    78,772,675.17x = 5,717,368,408,550,242
  5. Step 5: Solve for x
    x = 5,717,368,408,550,242/78,772,675.17
  6. Step 6: Final answer
    x = 72,580,604.84

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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.