Home / 7,721,108.58-10,655,142.39-4,283,349.72

Finding the Fourth Proportional to 7,721,108.58, 10,655,142.39 and 4,283,349.72

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Solution

The fourth proportional to 7,721,108.58, 10,655,142.39 and 4,283,349.72 is: 5,911,029.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721,108.58 : 10,655,142.39 = 4,283,349.72 : x
  2. Step 2: Convert to fraction form
    7,721,108.58/10,655,142.39 = 4,283,349.72/x
  3. Step 3: Cross multiply
    7,721,108.58x = 10,655,142.39 × 4,283,349.72
  4. Step 4: Simplify right side
    7,721,108.58x = 45,639,701,172,766.63
  5. Step 5: Solve for x
    x = 45,639,701,172,766.63/7,721,108.58
  6. Step 6: Final answer
    x = 5,911,029.58

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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.