Home / 758,142,957.28-1,137,283,836.72-212,880,817.12

Finding the Fourth Proportional to 758,142,957.28, 1,137,283,836.72 and 212,880,817.12

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Solution

The fourth proportional to 758,142,957.28, 1,137,283,836.72 and 212,880,817.12 is: 319,340,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,142,957.28 : 1,137,283,836.72 = 212,880,817.12 : x
  2. Step 2: Convert to fraction form
    758,142,957.28/1,137,283,836.72 = 212,880,817.12/x
  3. Step 3: Cross multiply
    758,142,957.28x = 1,137,283,836.72 × 212,880,817.12
  4. Step 4: Simplify right side
    758,142,957.28x = 242,105,912,458,322,272
  5. Step 5: Solve for x
    x = 242,105,912,458,322,272/758,142,957.28
  6. Step 6: Final answer
    x = 319,340,712.90

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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.