Home / 12,921,046.48-17,831,424.49-7,120,201.89

Finding the Fourth Proportional to 12,921,046.48, 17,831,424.49 and 7,120,201.89

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Solution

The fourth proportional to 12,921,046.48, 17,831,424.49 and 7,120,201.89 is: 9,826,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,046.48 : 17,831,424.49 = 7,120,201.89 : x
  2. Step 2: Convert to fraction form
    12,921,046.48/17,831,424.49 = 7,120,201.89/x
  3. Step 3: Cross multiply
    12,921,046.48x = 17,831,424.49 × 7,120,201.89
  4. Step 4: Simplify right side
    12,921,046.48x = 126,963,342,355,090.27
  5. Step 5: Solve for x
    x = 126,963,342,355,090.27/12,921,046.48
  6. Step 6: Final answer
    x = 9,826,088.20

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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.