Home / 782,429,200.20-1,173,643,800.30-374,282,512.20

Finding the Fourth Proportional to 782,429,200.20, 1,173,643,800.30 and 374,282,512.20

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Solution

The fourth proportional to 782,429,200.20, 1,173,643,800.30 and 374,282,512.20 is: 561,423,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,429,200.20 : 1,173,643,800.30 = 374,282,512.20 : x
  2. Step 2: Convert to fraction form
    782,429,200.20/1,173,643,800.30 = 374,282,512.20/x
  3. Step 3: Cross multiply
    782,429,200.20x = 1,173,643,800.30 × 374,282,512.20
  4. Step 4: Simplify right side
    782,429,200.20x = 439,274,350,004,239,104
  5. Step 5: Solve for x
    x = 439,274,350,004,239,104/782,429,200.20
  6. Step 6: Final answer
    x = 561,423,768.30

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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.