Home / 13,315,787.38-19,979,435.19-7,160,574.78

Finding the Fourth Proportional to 13,315,787.38, 19,979,435.19 and 7,160,574.78

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Solution

The fourth proportional to 13,315,787.38, 19,979,435.19 and 7,160,574.78 is: 10,743,956.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315,787.38 : 19,979,435.19 = 7,160,574.78 : x
  2. Step 2: Convert to fraction form
    13,315,787.38/19,979,435.19 = 7,160,574.78/x
  3. Step 3: Cross multiply
    13,315,787.38x = 19,979,435.19 × 7,160,574.78
  4. Step 4: Simplify right side
    13,315,787.38x = 143,064,239,740,158.53
  5. Step 5: Solve for x
    x = 143,064,239,740,158.53/13,315,787.38
  6. Step 6: Final answer
    x = 10,743,956.45

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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.