Home / 89,642,947.36-123,704,001.44-49,948,427.20

Finding the Fourth Proportional to 89,642,947.36, 123,704,001.44 and 49,948,427.20

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Solution

The fourth proportional to 89,642,947.36, 123,704,001.44 and 49,948,427.20 is: 68,927,009.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,642,947.36 : 123,704,001.44 = 49,948,427.20 : x
  2. Step 2: Convert to fraction form
    89,642,947.36/123,704,001.44 = 49,948,427.20/x
  3. Step 3: Cross multiply
    89,642,947.36x = 123,704,001.44 × 49,948,427.20
  4. Step 4: Simplify right side
    89,642,947.36x = 6,178,820,310,090,146
  5. Step 5: Solve for x
    x = 6,178,820,310,090,146/89,642,947.36
  6. Step 6: Final answer
    x = 68,927,009.79

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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.