Home / 288,683,999.70-433,025,999.55-212,156,495.70

Finding the Fourth Proportional to 288,683,999.70, 433,025,999.55 and 212,156,495.70

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Solution

The fourth proportional to 288,683,999.70, 433,025,999.55 and 212,156,495.70 is: 318,234,743.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,683,999.70 : 433,025,999.55 = 212,156,495.70 : x
  2. Step 2: Convert to fraction form
    288,683,999.70/433,025,999.55 = 212,156,495.70/x
  3. Step 3: Cross multiply
    288,683,999.70x = 433,025,999.55 × 212,156,495.70
  4. Step 4: Simplify right side
    288,683,999.70x = 91,869,278,611,517,776
  5. Step 5: Solve for x
    x = 91,869,278,611,517,776/288,683,999.70
  6. Step 6: Final answer
    x = 318,234,743.55

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1.5x scale

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.