Home / 986,209,481.34-1,360,590,431.13-562,846,665.78

Finding the Fourth Proportional to 986,209,481.34, 1,360,590,431.13 and 562,846,665.78

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Solution

The fourth proportional to 986,209,481.34, 1,360,590,431.13 and 562,846,665.78 is: 776,512,294.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,209,481.34 : 1,360,590,431.13 = 562,846,665.78 : x
  2. Step 2: Convert to fraction form
    986,209,481.34/1,360,590,431.13 = 562,846,665.78/x
  3. Step 3: Cross multiply
    986,209,481.34x = 1,360,590,431.13 × 562,846,665.78
  4. Step 4: Simplify right side
    986,209,481.34x = 765,803,787,653,693,184
  5. Step 5: Solve for x
    x = 765,803,787,653,693,184/986,209,481.34
  6. Step 6: Final answer
    x = 776,512,294.95

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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.