Home / 784,512,672.60-1,176,769,008.90-512,414,880.60

Finding the Fourth Proportional to 784,512,672.60, 1,176,769,008.90 and 512,414,880.60

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Solution

The fourth proportional to 784,512,672.60, 1,176,769,008.90 and 512,414,880.60 is: 768,622,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,512,672.60 : 1,176,769,008.90 = 512,414,880.60 : x
  2. Step 2: Convert to fraction form
    784,512,672.60/1,176,769,008.90 = 512,414,880.60/x
  3. Step 3: Cross multiply
    784,512,672.60x = 1,176,769,008.90 × 512,414,880.60
  4. Step 4: Simplify right side
    784,512,672.60x = 602,993,951,189,273,856
  5. Step 5: Solve for x
    x = 602,993,951,189,273,856/784,512,672.60
  6. Step 6: Final answer
    x = 768,622,320.90

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1.5x scale

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.