Home / 21,001,257.40-31,496,637.30-8,044,594.60

Finding the Fourth Proportional to 21,001,257.40, 31,496,637.30 and 8,044,594.60

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Solution

The fourth proportional to 21,001,257.40, 31,496,637.30 and 8,044,594.60 is: 12,064,881.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001,257.40 : 31,496,637.30 = 8,044,594.60 : x
  2. Step 2: Convert to fraction form
    21,001,257.40/31,496,637.30 = 8,044,594.60/x
  3. Step 3: Cross multiply
    21,001,257.40x = 31,496,637.30 × 8,044,594.60
  4. Step 4: Simplify right side
    21,001,257.40x = 253,377,678,341,738.56
  5. Step 5: Solve for x
    x = 253,377,678,341,738.56/21,001,257.40
  6. Step 6: Final answer
    x = 12,064,881.33

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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.