Home / 927,139,469.32-1,279,448,274.42-509,450,540.68

Finding the Fourth Proportional to 927,139,469.32, 1,279,448,274.42 and 509,450,540.68

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Solution

The fourth proportional to 927,139,469.32, 1,279,448,274.42 and 509,450,540.68 is: 703,039,442.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,139,469.32 : 1,279,448,274.42 = 509,450,540.68 : x
  2. Step 2: Convert to fraction form
    927,139,469.32/1,279,448,274.42 = 509,450,540.68/x
  3. Step 3: Cross multiply
    927,139,469.32x = 1,279,448,274.42 × 509,450,540.68
  4. Step 4: Simplify right side
    927,139,469.32x = 651,815,615,175,362,048
  5. Step 5: Solve for x
    x = 651,815,615,175,362,048/927,139,469.32
  6. Step 6: Final answer
    x = 703,039,442.01

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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.