Home / 782,447,029.39-1,079,801,199.91-430,016,615.83

Finding the Fourth Proportional to 782,447,029.39, 1,079,801,199.91 and 430,016,615.83

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Solution

The fourth proportional to 782,447,029.39, 1,079,801,199.91 and 430,016,615.83 is: 593,436,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,447,029.39 : 1,079,801,199.91 = 430,016,615.83 : x
  2. Step 2: Convert to fraction form
    782,447,029.39/1,079,801,199.91 = 430,016,615.83/x
  3. Step 3: Cross multiply
    782,447,029.39x = 1,079,801,199.91 × 430,016,615.83
  4. Step 4: Simplify right side
    782,447,029.39x = 464,332,457,757,729,984
  5. Step 5: Solve for x
    x = 464,332,457,757,729,984/782,447,029.39
  6. Step 6: Final answer
    x = 593,436,284.27

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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.