Home / 452,719,912.60-679,079,868.90-278,380,692.55

Finding the Fourth Proportional to 452,719,912.60, 679,079,868.90 and 278,380,692.55

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Solution

The fourth proportional to 452,719,912.60, 679,079,868.90 and 278,380,692.55 is: 417,571,038.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,719,912.60 : 679,079,868.90 = 278,380,692.55 : x
  2. Step 2: Convert to fraction form
    452,719,912.60/679,079,868.90 = 278,380,692.55/x
  3. Step 3: Cross multiply
    452,719,912.60x = 679,079,868.90 × 278,380,692.55
  4. Step 4: Simplify right side
    452,719,912.60x = 189,042,724,201,145,216
  5. Step 5: Solve for x
    x = 189,042,724,201,145,216/452,719,912.60
  6. Step 6: Final answer
    x = 417,571,038.83

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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.