Home / 81,145,196.23-111,945,182.84-53,681,375.11

Finding the Fourth Proportional to 81,145,196.23, 111,945,182.84 and 53,681,375.11

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Solution

The fourth proportional to 81,145,196.23, 111,945,182.84 and 53,681,375.11 is: 74,057,019.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,145,196.23 : 111,945,182.84 = 53,681,375.11 : x
  2. Step 2: Convert to fraction form
    81,145,196.23/111,945,182.84 = 53,681,375.11/x
  3. Step 3: Cross multiply
    81,145,196.23x = 111,945,182.84 × 53,681,375.11
  4. Step 4: Simplify right side
    81,145,196.23x = 6,009,371,351,243,305
  5. Step 5: Solve for x
    x = 6,009,371,351,243,305/81,145,196.23
  6. Step 6: Final answer
    x = 74,057,019.15

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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.