Home / 21,720,011.59-29,974,133.48-11,930,660.81

Finding the Fourth Proportional to 21,720,011.59, 29,974,133.48 and 11,930,660.81

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Solution

The fourth proportional to 21,720,011.59, 29,974,133.48 and 11,930,660.81 is: 16,464,596.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720,011.59 : 29,974,133.48 = 11,930,660.81 : x
  2. Step 2: Convert to fraction form
    21,720,011.59/29,974,133.48 = 11,930,660.81/x
  3. Step 3: Cross multiply
    21,720,011.59x = 29,974,133.48 × 11,930,660.81
  4. Step 4: Simplify right side
    21,720,011.59x = 357,611,219,593,533.94
  5. Step 5: Solve for x
    x = 357,611,219,593,533.94/21,720,011.59
  6. Step 6: Final answer
    x = 16,464,596.17

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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.