Home / 81,569,905.12-112,576,039.99-45,812,209.08

Finding the Fourth Proportional to 81,569,905.12, 112,576,039.99 and 45,812,209.08

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Solution

The fourth proportional to 81,569,905.12, 112,576,039.99 and 45,812,209.08 is: 63,226,223.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,569,905.12 : 112,576,039.99 = 45,812,209.08 : x
  2. Step 2: Convert to fraction form
    81,569,905.12/112,576,039.99 = 45,812,209.08/x
  3. Step 3: Cross multiply
    81,569,905.12x = 112,576,039.99 × 45,812,209.08
  4. Step 4: Simplify right side
    81,569,905.12x = 5,157,357,081,305,790
  5. Step 5: Solve for x
    x = 5,157,357,081,305,790/81,569,905.12
  6. Step 6: Final answer
    x = 63,226,223.86

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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.