Home / 39,072,187-53,919,618.06-21,671,196.76

Finding the Fourth Proportional to 39,072,187, 53,919,618.06 and 21,671,196.76

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Solution

The fourth proportional to 39,072,187, 53,919,618.06 and 21,671,196.76 is: 29,906,251.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072,187 : 53,919,618.06 = 21,671,196.76 : x
  2. Step 2: Convert to fraction form
    39,072,187/53,919,618.06 = 21,671,196.76/x
  3. Step 3: Cross multiply
    39,072,187x = 53,919,618.06 × 21,671,196.76
  4. Step 4: Simplify right side
    39,072,187x = 1,168,502,652,202,309.75
  5. Step 5: Solve for x
    x = 1,168,502,652,202,309.75/39,072,187
  6. Step 6: Final answer
    x = 29,906,251.53

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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.