Home / 12,942,687.15-17,860,894.74-7,141,468.57

Finding the Fourth Proportional to 12,942,687.15, 17,860,894.74 and 7,141,468.57

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Solution

The fourth proportional to 12,942,687.15, 17,860,894.74 and 7,141,468.57 is: 9,855,219.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,687.15 : 17,860,894.74 = 7,141,468.57 : x
  2. Step 2: Convert to fraction form
    12,942,687.15/17,860,894.74 = 7,141,468.57/x
  3. Step 3: Cross multiply
    12,942,687.15x = 17,860,894.74 × 7,141,468.57
  4. Step 4: Simplify right side
    12,942,687.15x = 127,553,018,373,136.08
  5. Step 5: Solve for x
    x = 127,553,018,373,136.08/12,942,687.15
  6. Step 6: Final answer
    x = 9,855,219.16

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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.