Home / 7,721,340.45-10,651,022.79-4,815,686.79

Finding the Fourth Proportional to 7,721,340.45, 10,651,022.79 and 4,815,686.79

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Solution

The fourth proportional to 7,721,340.45, 10,651,022.79 and 4,815,686.79 is: 6,642,886.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721,340.45 : 10,651,022.79 = 4,815,686.79 : x
  2. Step 2: Convert to fraction form
    7,721,340.45/10,651,022.79 = 4,815,686.79/x
  3. Step 3: Cross multiply
    7,721,340.45x = 10,651,022.79 × 4,815,686.79
  4. Step 4: Simplify right side
    7,721,340.45x = 51,291,989,749,791.94
  5. Step 5: Solve for x
    x = 51,291,989,749,791.94/7,721,340.45
  6. Step 6: Final answer
    x = 6,642,886.70

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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.