Home / 12,942,682.16-17,860,887.84-7,141,463.56

Finding the Fourth Proportional to 12,942,682.16, 17,860,887.84 and 7,141,463.56

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Solution

The fourth proportional to 12,942,682.16, 17,860,887.84 and 7,141,463.56 is: 9,855,212.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,682.16 : 17,860,887.84 = 7,141,463.56 : x
  2. Step 2: Convert to fraction form
    12,942,682.16/17,860,887.84 = 7,141,463.56/x
  3. Step 3: Cross multiply
    12,942,682.16x = 17,860,887.84 × 7,141,463.56
  4. Step 4: Simplify right side
    12,942,682.16x = 127,552,879,658,607.11
  5. Step 5: Solve for x
    x = 127,552,879,658,607.11/12,942,682.16
  6. Step 6: Final answer
    x = 9,855,212.24

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1.5x scale

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.