Home / 12,425,343.66-17,148,478.23-7,128,977.77

Finding the Fourth Proportional to 12,425,343.66, 17,148,478.23 and 7,128,977.77

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Solution

The fourth proportional to 12,425,343.66, 17,148,478.23 and 7,128,977.77 is: 9,838,852.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425,343.66 : 17,148,478.23 = 7,128,977.77 : x
  2. Step 2: Convert to fraction form
    12,425,343.66/17,148,478.23 = 7,128,977.77/x
  3. Step 3: Cross multiply
    12,425,343.66x = 17,148,478.23 × 7,128,977.77
  4. Step 4: Simplify right side
    12,425,343.66x = 122,251,120,090,998.94
  5. Step 5: Solve for x
    x = 122,251,120,090,998.94/12,425,343.66
  6. Step 6: Final answer
    x = 9,838,852.23

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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.