Home / 21,219,400.68-31,841,451.98-8,922,475.16

Finding the Fourth Proportional to 21,219,400.68, 31,841,451.98 and 8,922,475.16

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Solution

The fourth proportional to 21,219,400.68, 31,841,451.98 and 8,922,475.16 is: 13,388,906.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219,400.68 : 31,841,451.98 = 8,922,475.16 : x
  2. Step 2: Convert to fraction form
    21,219,400.68/31,841,451.98 = 8,922,475.16/x
  3. Step 3: Cross multiply
    21,219,400.68x = 31,841,451.98 × 8,922,475.16
  4. Step 4: Simplify right side
    21,219,400.68x = 284,104,564,349,882.81
  5. Step 5: Solve for x
    x = 284,104,564,349,882.81/21,219,400.68
  6. Step 6: Final answer
    x = 13,388,906.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.