Home / 21,827,429.84-30,121,883.05-11,904,336.51

Finding the Fourth Proportional to 21,827,429.84, 30,121,883.05 and 11,904,336.51

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Solution

The fourth proportional to 21,827,429.84, 30,121,883.05 and 11,904,336.51 is: 16,428,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827,429.84 : 30,121,883.05 = 11,904,336.51 : x
  2. Step 2: Convert to fraction form
    21,827,429.84/30,121,883.05 = 11,904,336.51/x
  3. Step 3: Cross multiply
    21,827,429.84x = 30,121,883.05 × 11,904,336.51
  4. Step 4: Simplify right side
    21,827,429.84x = 358,581,032,082,543.50
  5. Step 5: Solve for x
    x = 358,581,032,082,543.50/21,827,429.84
  6. Step 6: Final answer
    x = 16,428,000.68

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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.