Home / 20,999,465.94-31,533,373.42-12,963,524.39

Finding the Fourth Proportional to 20,999,465.94, 31,533,373.42 and 12,963,524.39

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Solution

The fourth proportional to 20,999,465.94, 31,533,373.42 and 12,963,524.39 is: 19,466,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,999,465.94 : 31,533,373.42 = 12,963,524.39 : x
  2. Step 2: Convert to fraction form
    20,999,465.94/31,533,373.42 = 12,963,524.39/x
  3. Step 3: Cross multiply
    20,999,465.94x = 31,533,373.42 × 12,963,524.39
  4. Step 4: Simplify right side
    20,999,465.94x = 408,783,655,239,072.06
  5. Step 5: Solve for x
    x = 408,783,655,239,072.06/20,999,465.94
  6. Step 6: Final answer
    x = 19,466,383.40

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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.