Home / 13,111,356.70-19,672,709.10-7,039,005.40

Finding the Fourth Proportional to 13,111,356.70, 19,672,709.10 and 7,039,005.40

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Solution

The fourth proportional to 13,111,356.70, 19,672,709.10 and 7,039,005.40 is: 10,561,554.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111,356.70 : 19,672,709.10 = 7,039,005.40 : x
  2. Step 2: Convert to fraction form
    13,111,356.70/19,672,709.10 = 7,039,005.40/x
  3. Step 3: Cross multiply
    13,111,356.70x = 19,672,709.10 × 7,039,005.40
  4. Step 4: Simplify right side
    13,111,356.70x = 138,476,305,587,529.16
  5. Step 5: Solve for x
    x = 138,476,305,587,529.16/13,111,356.70
  6. Step 6: Final answer
    x = 10,561,554.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.