Home / 21,084,545.86-31,629,378.04-5,938,477.36

Finding the Fourth Proportional to 21,084,545.86, 31,629,378.04 and 5,938,477.36

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Solution

The fourth proportional to 21,084,545.86, 31,629,378.04 and 5,938,477.36 is: 8,908,436.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,084,545.86 : 31,629,378.04 = 5,938,477.36 : x
  2. Step 2: Convert to fraction form
    21,084,545.86/31,629,378.04 = 5,938,477.36/x
  3. Step 3: Cross multiply
    21,084,545.86x = 31,629,378.04 × 5,938,477.36
  4. Step 4: Simplify right side
    21,084,545.86x = 187,830,345,388,112.81
  5. Step 5: Solve for x
    x = 187,830,345,388,112.81/21,084,545.86
  6. Step 6: Final answer
    x = 8,908,436.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.