Home / 289,377,427.20-434,570,025.60-153,328,531.20

Finding the Fourth Proportional to 289,377,427.20, 434,570,025.60 and 153,328,531.20

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Solution

The fourth proportional to 289,377,427.20, 434,570,025.60 and 153,328,531.20 is: 230,259,783.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,377,427.20 : 434,570,025.60 = 153,328,531.20 : x
  2. Step 2: Convert to fraction form
    289,377,427.20/434,570,025.60 = 153,328,531.20/x
  3. Step 3: Cross multiply
    289,377,427.20x = 434,570,025.60 × 153,328,531.20
  4. Step 4: Simplify right side
    289,377,427.20x = 66,631,983,728,794,400
  5. Step 5: Solve for x
    x = 66,631,983,728,794,400/289,377,427.20
  6. Step 6: Final answer
    x = 230,259,783.47

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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.