Home / 19,424,040.79-29,120,970.88-12,586,166.59

Finding the Fourth Proportional to 19,424,040.79, 29,120,970.88 and 12,586,166.59

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Solution

The fourth proportional to 19,424,040.79, 29,120,970.88 and 12,586,166.59 is: 18,869,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,424,040.79 : 29,120,970.88 = 12,586,166.59 : x
  2. Step 2: Convert to fraction form
    19,424,040.79/29,120,970.88 = 12,586,166.59/x
  3. Step 3: Cross multiply
    19,424,040.79x = 29,120,970.88 × 12,586,166.59
  4. Step 4: Simplify right side
    19,424,040.79x = 366,521,390,758,218.88
  5. Step 5: Solve for x
    x = 366,521,390,758,218.88/19,424,040.79
  6. Step 6: Final answer
    x = 18,869,471.84

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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.