Home / 775,901,859.43-1,070,729,388.44-423,480,376.87

Finding the Fourth Proportional to 775,901,859.43, 1,070,729,388.44 and 423,480,376.87

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Solution

The fourth proportional to 775,901,859.43, 1,070,729,388.44 and 423,480,376.87 is: 584,394,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,901,859.43 : 1,070,729,388.44 = 423,480,376.87 : x
  2. Step 2: Convert to fraction form
    775,901,859.43/1,070,729,388.44 = 423,480,376.87/x
  3. Step 3: Cross multiply
    775,901,859.43x = 1,070,729,388.44 × 423,480,376.87
  4. Step 4: Simplify right side
    775,901,859.43x = 453,432,884,939,170,816
  5. Step 5: Solve for x
    x = 453,432,884,939,170,816/775,901,859.43
  6. Step 6: Final answer
    x = 584,394,636.29

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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.