Home / 1,138,965,085.16-1,708,275,007.41-309,983,326.88

Finding the Fourth Proportional to 1,138,965,085.16, 1,708,275,007.41 and 309,983,326.88

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Solution

The fourth proportional to 1,138,965,085.16, 1,708,275,007.41 and 309,983,326.88 is: 464,928,009.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,965,085.16 : 1,708,275,007.41 = 309,983,326.88 : x
  2. Step 2: Convert to fraction form
    1,138,965,085.16/1,708,275,007.41 = 309,983,326.88/x
  3. Step 3: Cross multiply
    1,138,965,085.16x = 1,708,275,007.41 × 309,983,326.88
  4. Step 4: Simplify right side
    1,138,965,085.16x = 529,536,770,022,908,480
  5. Step 5: Solve for x
    x = 529,536,770,022,908,480/1,138,965,085.16
  6. Step 6: Final answer
    x = 464,928,009.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.