Home / 412,421,886.71-618,574,584.43-132,266,396.88

Finding the Fourth Proportional to 412,421,886.71, 618,574,584.43 and 132,266,396.88

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Solution

The fourth proportional to 412,421,886.71, 618,574,584.43 and 132,266,396.88 is: 198,380,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,421,886.71 : 618,574,584.43 = 132,266,396.88 : x
  2. Step 2: Convert to fraction form
    412,421,886.71/618,574,584.43 = 132,266,396.88/x
  3. Step 3: Cross multiply
    412,421,886.71x = 618,574,584.43 × 132,266,396.88
  4. Step 4: Simplify right side
    412,421,886.71x = 81,816,631,484,099,440
  5. Step 5: Solve for x
    x = 81,816,631,484,099,440/412,421,886.71
  6. Step 6: Final answer
    x = 198,380,915.56

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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.