Home / 281,854,711.80-388,958,706-156,425,844.60

Finding the Fourth Proportional to 281,854,711.80, 388,958,706 and 156,425,844.60

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Solution

The fourth proportional to 281,854,711.80, 388,958,706 and 156,425,844.60 is: 215,867,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,854,711.80 : 388,958,706 = 156,425,844.60 : x
  2. Step 2: Convert to fraction form
    281,854,711.80/388,958,706 = 156,425,844.60/x
  3. Step 3: Cross multiply
    281,854,711.80x = 388,958,706 × 156,425,844.60
  4. Step 4: Simplify right side
    281,854,711.80x = 60,843,194,100,573,088
  5. Step 5: Solve for x
    x = 60,843,194,100,573,088/281,854,711.80
  6. Step 6: Final answer
    x = 215,867,223.62

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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.