Home / 784,405,205.20-1,176,607,807.80-267,419,400.40

Finding the Fourth Proportional to 784,405,205.20, 1,176,607,807.80 and 267,419,400.40

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Solution

The fourth proportional to 784,405,205.20, 1,176,607,807.80 and 267,419,400.40 is: 401,129,100.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,405,205.20 : 1,176,607,807.80 = 267,419,400.40 : x
  2. Step 2: Convert to fraction form
    784,405,205.20/1,176,607,807.80 = 267,419,400.40/x
  3. Step 3: Cross multiply
    784,405,205.20x = 1,176,607,807.80 × 267,419,400.40
  4. Step 4: Simplify right side
    784,405,205.20x = 314,647,754,467,834,432
  5. Step 5: Solve for x
    x = 314,647,754,467,834,432/784,405,205.20
  6. Step 6: Final answer
    x = 401,129,100.60

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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.