Home / 108,896,815.80-150,107,438.10-74,028,971.78

Finding the Fourth Proportional to 108,896,815.80, 150,107,438.10 and 74,028,971.78

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Solution

The fourth proportional to 108,896,815.80, 150,107,438.10 and 74,028,971.78 is: 102,044,299.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,896,815.80 : 150,107,438.10 = 74,028,971.78 : x
  2. Step 2: Convert to fraction form
    108,896,815.80/150,107,438.10 = 74,028,971.78/x
  3. Step 3: Cross multiply
    108,896,815.80x = 150,107,438.10 × 74,028,971.78
  4. Step 4: Simplify right side
    108,896,815.80x = 11,112,299,299,072,996
  5. Step 5: Solve for x
    x = 11,112,299,299,072,996/108,896,815.80
  6. Step 6: Final answer
    x = 102,044,299.62

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1.5x scale

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.