Home / 12,745,792.84-19,100,143.48-7,877,705.80

Finding the Fourth Proportional to 12,745,792.84, 19,100,143.48 and 7,877,705.80

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Solution

The fourth proportional to 12,745,792.84, 19,100,143.48 and 7,877,705.80 is: 11,805,096.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745,792.84 : 19,100,143.48 = 7,877,705.80 : x
  2. Step 2: Convert to fraction form
    12,745,792.84/19,100,143.48 = 7,877,705.80/x
  3. Step 3: Cross multiply
    12,745,792.84x = 19,100,143.48 × 7,877,705.80
  4. Step 4: Simplify right side
    12,745,792.84x = 150,465,311,073,228.19
  5. Step 5: Solve for x
    x = 150,465,311,073,228.19/12,745,792.84
  6. Step 6: Final answer
    x = 11,805,096.24

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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.