Home / 15,677,993.76-21,634,900.14-8,709,123

Finding the Fourth Proportional to 15,677,993.76, 21,634,900.14 and 8,709,123

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Solution

The fourth proportional to 15,677,993.76, 21,634,900.14 and 8,709,123 is: 12,018,183.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,677,993.76 : 21,634,900.14 = 8,709,123 : x
  2. Step 2: Convert to fraction form
    15,677,993.76/21,634,900.14 = 8,709,123/x
  3. Step 3: Cross multiply
    15,677,993.76x = 21,634,900.14 × 8,709,123
  4. Step 4: Simplify right side
    15,677,993.76x = 188,421,006,411,977.22
  5. Step 5: Solve for x
    x = 188,421,006,411,977.22/15,677,993.76
  6. Step 6: Final answer
    x = 12,018,183.53

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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.