Home / 782,028,630.87-1,079,200,217.93-429,627,450.21

Finding the Fourth Proportional to 782,028,630.87, 1,079,200,217.93 and 429,627,450.21

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Solution

The fourth proportional to 782,028,630.87, 1,079,200,217.93 and 429,627,450.21 is: 592,886,269.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,028,630.87 : 1,079,200,217.93 = 429,627,450.21 : x
  2. Step 2: Convert to fraction form
    782,028,630.87/1,079,200,217.93 = 429,627,450.21/x
  3. Step 3: Cross multiply
    782,028,630.87x = 1,079,200,217.93 × 429,627,450.21
  4. Step 4: Simplify right side
    782,028,630.87x = 463,654,037,893,194,048
  5. Step 5: Solve for x
    x = 463,654,037,893,194,048/782,028,630.87
  6. Step 6: Final answer
    x = 592,886,269.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.