Home / 15,420,948.34-21,281,033.73-8,545,545.22

Finding the Fourth Proportional to 15,420,948.34, 21,281,033.73 and 8,545,545.22

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Solution

The fourth proportional to 15,420,948.34, 21,281,033.73 and 8,545,545.22 is: 11,792,921.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,948.34 : 21,281,033.73 = 8,545,545.22 : x
  2. Step 2: Convert to fraction form
    15,420,948.34/21,281,033.73 = 8,545,545.22/x
  3. Step 3: Cross multiply
    15,420,948.34x = 21,281,033.73 × 8,545,545.22
  4. Step 4: Simplify right side
    15,420,948.34x = 181,858,036,068,060.28
  5. Step 5: Solve for x
    x = 181,858,036,068,060.28/15,420,948.34
  6. Step 6: Final answer
    x = 11,792,921.68

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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.