Home / 7,172,573.17-9,898,063.88-3,909,377.81

Finding the Fourth Proportional to 7,172,573.17, 9,898,063.88 and 3,909,377.81

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Solution

The fourth proportional to 7,172,573.17, 9,898,063.88 and 3,909,377.81 is: 5,394,893.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,573.17 : 9,898,063.88 = 3,909,377.81 : x
  2. Step 2: Convert to fraction form
    7,172,573.17/9,898,063.88 = 3,909,377.81/x
  3. Step 3: Cross multiply
    7,172,573.17x = 9,898,063.88 × 3,909,377.81
  4. Step 4: Simplify right side
    7,172,573.17x = 38,695,271,294,434.51
  5. Step 5: Solve for x
    x = 38,695,271,294,434.51/7,172,573.17
  6. Step 6: Final answer
    x = 5,394,893.91

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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.