Home / 13,122,545.07-18,110,139.31-7,243,346.66

Finding the Fourth Proportional to 13,122,545.07, 18,110,139.31 and 7,243,346.66

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Solution

The fourth proportional to 13,122,545.07, 18,110,139.31 and 7,243,346.66 is: 9,996,385.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,545.07 : 18,110,139.31 = 7,243,346.66 : x
  2. Step 2: Convert to fraction form
    13,122,545.07/18,110,139.31 = 7,243,346.66/x
  3. Step 3: Cross multiply
    13,122,545.07x = 18,110,139.31 × 7,243,346.66
  4. Step 4: Simplify right side
    13,122,545.07x = 131,178,017,083,223.20
  5. Step 5: Solve for x
    x = 131,178,017,083,223.20/13,122,545.07
  6. Step 6: Final answer
    x = 9,996,385.33

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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.