Home / 54,978,057.09-75,867,640.13-30,533,345.73

Finding the Fourth Proportional to 54,978,057.09, 75,867,640.13 and 30,533,345.73

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Solution

The fourth proportional to 54,978,057.09, 75,867,640.13 and 30,533,345.73 is: 42,134,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,978,057.09 : 75,867,640.13 = 30,533,345.73 : x
  2. Step 2: Convert to fraction form
    54,978,057.09/75,867,640.13 = 30,533,345.73/x
  3. Step 3: Cross multiply
    54,978,057.09x = 75,867,640.13 × 30,533,345.73
  4. Step 4: Simplify right side
    54,978,057.09x = 2,316,492,885,884,845.50
  5. Step 5: Solve for x
    x = 2,316,492,885,884,845.50/54,978,057.09
  6. Step 6: Final answer
    x = 42,134,862.68

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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.