Home / 784,681,658.64-1,177,065,411.48-318,273,815.52

Finding the Fourth Proportional to 784,681,658.64, 1,177,065,411.48 and 318,273,815.52

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Solution

The fourth proportional to 784,681,658.64, 1,177,065,411.48 and 318,273,815.52 is: 477,428,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,681,658.64 : 1,177,065,411.48 = 318,273,815.52 : x
  2. Step 2: Convert to fraction form
    784,681,658.64/1,177,065,411.48 = 318,273,815.52/x
  3. Step 3: Cross multiply
    784,681,658.64x = 1,177,065,411.48 × 318,273,815.52
  4. Step 4: Simplify right side
    784,681,658.64x = 374,629,099,628,358,400
  5. Step 5: Solve for x
    x = 374,629,099,628,358,400/784,681,658.64
  6. Step 6: Final answer
    x = 477,428,133.44

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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.