Home / 21,102,358.50-31,637,001.72-8,332,421.76

Finding the Fourth Proportional to 21,102,358.50, 31,637,001.72 and 8,332,421.76

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Solution

The fourth proportional to 21,102,358.50, 31,637,001.72 and 8,332,421.76 is: 12,492,103.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,102,358.50 : 31,637,001.72 = 8,332,421.76 : x
  2. Step 2: Convert to fraction form
    21,102,358.50/31,637,001.72 = 8,332,421.76/x
  3. Step 3: Cross multiply
    21,102,358.50x = 31,637,001.72 × 8,332,421.76
  4. Step 4: Simplify right side
    21,102,358.50x = 263,612,841,552,885.41
  5. Step 5: Solve for x
    x = 263,612,841,552,885.41/21,102,358.50
  6. Step 6: Final answer
    x = 12,492,103.27

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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.