Home / 12,993,881.78-17,931,339.21-7,192,538.66

Finding the Fourth Proportional to 12,993,881.78, 17,931,339.21 and 7,192,538.66

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Solution

The fourth proportional to 12,993,881.78, 17,931,339.21 and 7,192,538.66 is: 9,925,582.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,993,881.78 : 17,931,339.21 = 7,192,538.66 : x
  2. Step 2: Convert to fraction form
    12,993,881.78/17,931,339.21 = 7,192,538.66/x
  3. Step 3: Cross multiply
    12,993,881.78x = 17,931,339.21 × 7,192,538.66
  4. Step 4: Simplify right side
    12,993,881.78x = 128,971,850,493,498.88
  5. Step 5: Solve for x
    x = 128,971,850,493,498.88/12,993,881.78
  6. Step 6: Final answer
    x = 9,925,582.88

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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.