Home / 1,215,135,345.44-1,676,894,828.08-658,218,392.52

Finding the Fourth Proportional to 1,215,135,345.44, 1,676,894,828.08 and 658,218,392.52

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Solution

The fourth proportional to 1,215,135,345.44, 1,676,894,828.08 and 658,218,392.52 is: 908,345,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,135,345.44 : 1,676,894,828.08 = 658,218,392.52 : x
  2. Step 2: Convert to fraction form
    1,215,135,345.44/1,676,894,828.08 = 658,218,392.52/x
  3. Step 3: Cross multiply
    1,215,135,345.44x = 1,676,894,828.08 × 658,218,392.52
  4. Step 4: Simplify right side
    1,215,135,345.44x = 1,103,763,018,163,919,232
  5. Step 5: Solve for x
    x = 1,103,763,018,163,919,232/1,215,135,345.44
  6. Step 6: Final answer
    x = 908,345,742.97

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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.