Home / 81,739,337.32-112,802,554.94-49,954,653.01

Finding the Fourth Proportional to 81,739,337.32, 112,802,554.94 and 49,954,653.01

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Solution

The fourth proportional to 81,739,337.32, 112,802,554.94 and 49,954,653.01 is: 68,938,808.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,739,337.32 : 112,802,554.94 = 49,954,653.01 : x
  2. Step 2: Convert to fraction form
    81,739,337.32/112,802,554.94 = 49,954,653.01/x
  3. Step 3: Cross multiply
    81,739,337.32x = 112,802,554.94 × 49,954,653.01
  4. Step 4: Simplify right side
    81,739,337.32x = 5,635,012,490,560,391
  5. Step 5: Solve for x
    x = 5,635,012,490,560,391/81,739,337.32
  6. Step 6: Final answer
    x = 68,938,808.11

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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.