Home / 13,885,535.94-19,160,580.81-7,690,420.36

Finding the Fourth Proportional to 13,885,535.94, 19,160,580.81 and 7,690,420.36

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Solution

The fourth proportional to 13,885,535.94, 19,160,580.81 and 7,690,420.36 is: 10,611,972.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,885,535.94 : 19,160,580.81 = 7,690,420.36 : x
  2. Step 2: Convert to fraction form
    13,885,535.94/19,160,580.81 = 7,690,420.36/x
  3. Step 3: Cross multiply
    13,885,535.94x = 19,160,580.81 × 7,690,420.36
  4. Step 4: Simplify right side
    13,885,535.94x = 147,352,920,770,649.28
  5. Step 5: Solve for x
    x = 147,352,920,770,649.28/13,885,535.94
  6. Step 6: Final answer
    x = 10,611,972.16

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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.