Home / 47,147,951.50-70,721,946.90-21,209,956.38

Finding the Fourth Proportional to 47,147,951.50, 70,721,946.90 and 21,209,956.38

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Solution

The fourth proportional to 47,147,951.50, 70,721,946.90 and 21,209,956.38 is: 31,814,943.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,147,951.50 : 70,721,946.90 = 21,209,956.38 : x
  2. Step 2: Convert to fraction form
    47,147,951.50/70,721,946.90 = 21,209,956.38/x
  3. Step 3: Cross multiply
    47,147,951.50x = 70,721,946.90 × 21,209,956.38
  4. Step 4: Simplify right side
    47,147,951.50x = 1,500,009,408,857,676.25
  5. Step 5: Solve for x
    x = 1,500,009,408,857,676.25/47,147,951.50
  6. Step 6: Final answer
    x = 31,814,943.41

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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.