Home / 138,871,788-208,353,988.32-92,368,604.64

Finding the Fourth Proportional to 138,871,788, 208,353,988.32 and 92,368,604.64

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Solution

The fourth proportional to 138,871,788, 208,353,988.32 and 92,368,604.64 is: 138,583,706.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,871,788 : 208,353,988.32 = 92,368,604.64 : x
  2. Step 2: Convert to fraction form
    138,871,788/208,353,988.32 = 92,368,604.64/x
  3. Step 3: Cross multiply
    138,871,788x = 208,353,988.32 × 92,368,604.64
  4. Step 4: Simplify right side
    138,871,788x = 19,245,367,172,297,256
  5. Step 5: Solve for x
    x = 19,245,367,172,297,256/138,871,788
  6. Step 6: Final answer
    x = 138,583,706.95

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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.