Home / 318,895,157.80-478,297,317-100,517,119.48

Finding the Fourth Proportional to 318,895,157.80, 478,297,317 and 100,517,119.48

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Solution

The fourth proportional to 318,895,157.80, 478,297,317 and 100,517,119.48 is: 150,761,362.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,895,157.80 : 478,297,317 = 100,517,119.48 : x
  2. Step 2: Convert to fraction form
    318,895,157.80/478,297,317 = 100,517,119.48/x
  3. Step 3: Cross multiply
    318,895,157.80x = 478,297,317 × 100,517,119.48
  4. Step 4: Simplify right side
    318,895,157.80x = 48,077,068,559,852,440
  5. Step 5: Solve for x
    x = 48,077,068,559,852,440/318,895,157.80
  6. Step 6: Final answer
    x = 150,761,362.74

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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.