Home / 21,294,683.10-31,942,024.65-12,791,627.10

Finding the Fourth Proportional to 21,294,683.10, 31,942,024.65 and 12,791,627.10

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Solution

The fourth proportional to 21,294,683.10, 31,942,024.65 and 12,791,627.10 is: 19,187,440.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,683.10 : 31,942,024.65 = 12,791,627.10 : x
  2. Step 2: Convert to fraction form
    21,294,683.10/31,942,024.65 = 12,791,627.10/x
  3. Step 3: Cross multiply
    21,294,683.10x = 31,942,024.65 × 12,791,627.10
  4. Step 4: Simplify right side
    21,294,683.10x = 408,590,468,141,808
  5. Step 5: Solve for x
    x = 408,590,468,141,808/21,294,683.10
  6. Step 6: Final answer
    x = 19,187,440.65

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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.