Home / 21,919,862.85-30,249,469.34-12,130,982.07

Finding the Fourth Proportional to 21,919,862.85, 30,249,469.34 and 12,130,982.07

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Solution

The fourth proportional to 21,919,862.85, 30,249,469.34 and 12,130,982.07 is: 16,740,787.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,862.85 : 30,249,469.34 = 12,130,982.07 : x
  2. Step 2: Convert to fraction form
    21,919,862.85/30,249,469.34 = 12,130,982.07/x
  3. Step 3: Cross multiply
    21,919,862.85x = 30,249,469.34 × 12,130,982.07
  4. Step 4: Simplify right side
    21,919,862.85x = 366,955,770,190,554.75
  5. Step 5: Solve for x
    x = 366,955,770,190,554.75/21,919,862.85
  6. Step 6: Final answer
    x = 16,740,787.69

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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.