Home / 12,385,384.32-17,091,869.94-6,878,758.20

Finding the Fourth Proportional to 12,385,384.32, 17,091,869.94 and 6,878,758.20

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Solution

The fourth proportional to 12,385,384.32, 17,091,869.94 and 6,878,758.20 is: 9,492,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385,384.32 : 17,091,869.94 = 6,878,758.20 : x
  2. Step 2: Convert to fraction form
    12,385,384.32/17,091,869.94 = 6,878,758.20/x
  3. Step 3: Cross multiply
    12,385,384.32x = 17,091,869.94 × 6,878,758.20
  4. Step 4: Simplify right side
    12,385,384.32x = 117,570,840,503,108.52
  5. Step 5: Solve for x
    x = 117,570,840,503,108.52/12,385,384.32
  6. Step 6: Final answer
    x = 9,492,708.30

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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.