Home / 69,414,371.72-104,130,266.70-20,884,666.76

Finding the Fourth Proportional to 69,414,371.72, 104,130,266.70 and 20,884,666.76

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Solution

The fourth proportional to 69,414,371.72, 104,130,266.70 and 20,884,666.76 is: 31,329,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,414,371.72 : 104,130,266.70 = 20,884,666.76 : x
  2. Step 2: Convert to fraction form
    69,414,371.72/104,130,266.70 = 20,884,666.76/x
  3. Step 3: Cross multiply
    69,414,371.72x = 104,130,266.70 × 20,884,666.76
  4. Step 4: Simplify right side
    69,414,371.72x = 2,174,725,919,659,425
  5. Step 5: Solve for x
    x = 2,174,725,919,659,425/69,414,371.72
  6. Step 6: Final answer
    x = 31,329,620.45

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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.