Home / 3,178,052.70-4,767,079.05-1,915,230.30

Finding the Fourth Proportional to 3,178,052.70, 4,767,079.05 and 1,915,230.30

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Solution

The fourth proportional to 3,178,052.70, 4,767,079.05 and 1,915,230.30 is: 2,872,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,052.70 : 4,767,079.05 = 1,915,230.30 : x
  2. Step 2: Convert to fraction form
    3,178,052.70/4,767,079.05 = 1,915,230.30/x
  3. Step 3: Cross multiply
    3,178,052.70x = 4,767,079.05 × 1,915,230.30
  4. Step 4: Simplify right side
    3,178,052.70x = 9,130,054,239,055.22
  5. Step 5: Solve for x
    x = 9,130,054,239,055.22/3,178,052.70
  6. Step 6: Final answer
    x = 2,872,845.45

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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.