Home / 782,028,631.62-1,079,200,218.96-429,627,450.96

Finding the Fourth Proportional to 782,028,631.62, 1,079,200,218.96 and 429,627,450.96

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Solution

The fourth proportional to 782,028,631.62, 1,079,200,218.96 and 429,627,450.96 is: 592,886,270.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,028,631.62 : 1,079,200,218.96 = 429,627,450.96 : x
  2. Step 2: Convert to fraction form
    782,028,631.62/1,079,200,218.96 = 429,627,450.96/x
  3. Step 3: Cross multiply
    782,028,631.62x = 1,079,200,218.96 × 429,627,450.96
  4. Step 4: Simplify right side
    782,028,631.62x = 463,654,039,147,258,624
  5. Step 5: Solve for x
    x = 463,654,039,147,258,624/782,028,631.62
  6. Step 6: Final answer
    x = 592,886,270.91

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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.