Home / 12,985,806.24-17,926,152.24-7,760,657.76

Finding the Fourth Proportional to 12,985,806.24, 17,926,152.24 and 7,760,657.76

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Solution

The fourth proportional to 12,985,806.24, 17,926,152.24 and 7,760,657.76 is: 10,713,137.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,985,806.24 : 17,926,152.24 = 7,760,657.76 : x
  2. Step 2: Convert to fraction form
    12,985,806.24/17,926,152.24 = 7,760,657.76/x
  3. Step 3: Cross multiply
    12,985,806.24x = 17,926,152.24 × 7,760,657.76
  4. Step 4: Simplify right side
    12,985,806.24x = 139,118,732,488,297.36
  5. Step 5: Solve for x
    x = 139,118,732,488,297.36/12,985,806.24
  6. Step 6: Final answer
    x = 10,713,137.86

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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.