Home / 21,069,988.06-29,078,943.96-11,903,221.30

Finding the Fourth Proportional to 21,069,988.06, 29,078,943.96 and 11,903,221.30

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Solution

The fourth proportional to 21,069,988.06, 29,078,943.96 and 11,903,221.30 is: 16,427,778.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,988.06 : 29,078,943.96 = 11,903,221.30 : x
  2. Step 2: Convert to fraction form
    21,069,988.06/29,078,943.96 = 11,903,221.30/x
  3. Step 3: Cross multiply
    21,069,988.06x = 29,078,943.96 × 11,903,221.30
  4. Step 4: Simplify right side
    21,069,988.06x = 346,133,105,126,178.38
  5. Step 5: Solve for x
    x = 346,133,105,126,178.38/21,069,988.06
  6. Step 6: Final answer
    x = 16,427,778.89

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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.