Home / 665,913,159.56-998,965,447.92-205,887,201.16

Finding the Fourth Proportional to 665,913,159.56, 998,965,447.92 and 205,887,201.16

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Solution

The fourth proportional to 665,913,159.56, 998,965,447.92 and 205,887,201.16 is: 308,860,392.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,913,159.56 : 998,965,447.92 = 205,887,201.16 : x
  2. Step 2: Convert to fraction form
    665,913,159.56/998,965,447.92 = 205,887,201.16/x
  3. Step 3: Cross multiply
    665,913,159.56x = 998,965,447.92 × 205,887,201.16
  4. Step 4: Simplify right side
    665,913,159.56x = 205,674,200,127,794,528
  5. Step 5: Solve for x
    x = 205,674,200,127,794,528/665,913,159.56
  6. Step 6: Final answer
    x = 308,860,392.94

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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.