Home / 805,281,930.31-1,207,968,265.64-245,061,978.79

Finding the Fourth Proportional to 805,281,930.31, 1,207,968,265.64 and 245,061,978.79

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Solution

The fourth proportional to 805,281,930.31, 1,207,968,265.64 and 245,061,978.79 is: 367,606,775.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,281,930.31 : 1,207,968,265.64 = 245,061,978.79 : x
  2. Step 2: Convert to fraction form
    805,281,930.31/1,207,968,265.64 = 245,061,978.79/x
  3. Step 3: Cross multiply
    805,281,930.31x = 1,207,968,265.64 × 245,061,978.79
  4. Step 4: Simplify right side
    805,281,930.31x = 296,027,093,493,262,784
  5. Step 5: Solve for x
    x = 296,027,093,493,262,784/805,281,930.31
  6. Step 6: Final answer
    x = 367,606,775.16

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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.