Home / 289,377,418.20-434,570,012.10-153,328,522.20

Finding the Fourth Proportional to 289,377,418.20, 434,570,012.10 and 153,328,522.20

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Solution

The fourth proportional to 289,377,418.20, 434,570,012.10 and 153,328,522.20 is: 230,259,769.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,377,418.20 : 434,570,012.10 = 153,328,522.20 : x
  2. Step 2: Convert to fraction form
    289,377,418.20/434,570,012.10 = 153,328,522.20/x
  3. Step 3: Cross multiply
    289,377,418.20x = 434,570,012.10 × 153,328,522.20
  4. Step 4: Simplify right side
    289,377,418.20x = 66,631,977,747,729,120
  5. Step 5: Solve for x
    x = 66,631,977,747,729,120/289,377,418.20
  6. Step 6: Final answer
    x = 230,259,769.96

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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.