Home / 318,877,232.76-478,315,855.31-76,540,136.76

Finding the Fourth Proportional to 318,877,232.76, 478,315,855.31 and 76,540,136.76

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Solution

The fourth proportional to 318,877,232.76, 478,315,855.31 and 76,540,136.76 is: 114,810,206.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,877,232.76 : 478,315,855.31 = 76,540,136.76 : x
  2. Step 2: Convert to fraction form
    318,877,232.76/478,315,855.31 = 76,540,136.76/x
  3. Step 3: Cross multiply
    318,877,232.76x = 478,315,855.31 × 76,540,136.76
  4. Step 4: Simplify right side
    318,877,232.76x = 36,610,360,979,521,072
  5. Step 5: Solve for x
    x = 36,610,360,979,521,072/318,877,232.76
  6. Step 6: Final answer
    x = 114,810,206.62

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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.