Home / 21,355,525.90-29,470,616.49-11,565,970.57

Finding the Fourth Proportional to 21,355,525.90, 29,470,616.49 and 11,565,970.57

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Solution

The fourth proportional to 21,355,525.90, 29,470,616.49 and 11,565,970.57 is: 15,961,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355,525.90 : 29,470,616.49 = 11,565,970.57 : x
  2. Step 2: Convert to fraction form
    21,355,525.90/29,470,616.49 = 11,565,970.57/x
  3. Step 3: Cross multiply
    21,355,525.90x = 29,470,616.49 × 11,565,970.57
  4. Step 4: Simplify right side
    21,355,525.90x = 340,856,283,003,096.69
  5. Step 5: Solve for x
    x = 340,856,283,003,096.69/21,355,525.90
  6. Step 6: Final answer
    x = 15,961,034.38

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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.