Home / 21,291,037.92-31,936,557.51-6,719,434.20

Finding the Fourth Proportional to 21,291,037.92, 31,936,557.51 and 6,719,434.20

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Solution

The fourth proportional to 21,291,037.92, 31,936,557.51 and 6,719,434.20 is: 10,079,151.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291,037.92 : 31,936,557.51 = 6,719,434.20 : x
  2. Step 2: Convert to fraction form
    21,291,037.92/31,936,557.51 = 6,719,434.20/x
  3. Step 3: Cross multiply
    21,291,037.92x = 31,936,557.51 × 6,719,434.20
  4. Step 4: Simplify right side
    21,291,037.92x = 214,595,596,762,960.84
  5. Step 5: Solve for x
    x = 214,595,596,762,960.84/21,291,037.92
  6. Step 6: Final answer
    x = 10,079,151.50

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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.