Home / 21,409,586.81-29,545,257.48-11,620,029.86

Finding the Fourth Proportional to 21,409,586.81, 29,545,257.48 and 11,620,029.86

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Solution

The fourth proportional to 21,409,586.81, 29,545,257.48 and 11,620,029.86 is: 16,035,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409,586.81 : 29,545,257.48 = 11,620,029.86 : x
  2. Step 2: Convert to fraction form
    21,409,586.81/29,545,257.48 = 11,620,029.86/x
  3. Step 3: Cross multiply
    21,409,586.81x = 29,545,257.48 × 11,620,029.86
  4. Step 4: Simplify right side
    21,409,586.81x = 343,316,774,138,988.31
  5. Step 5: Solve for x
    x = 343,316,774,138,988.31/21,409,586.81
  6. Step 6: Final answer
    x = 16,035,656.23

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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.