Home / 299,563,321.20-449,344,981.80-146,130,399.60

Finding the Fourth Proportional to 299,563,321.20, 449,344,981.80 and 146,130,399.60

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Solution

The fourth proportional to 299,563,321.20, 449,344,981.80 and 146,130,399.60 is: 219,195,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,563,321.20 : 449,344,981.80 = 146,130,399.60 : x
  2. Step 2: Convert to fraction form
    299,563,321.20/449,344,981.80 = 146,130,399.60/x
  3. Step 3: Cross multiply
    299,563,321.20x = 449,344,981.80 × 146,130,399.60
  4. Step 4: Simplify right side
    299,563,321.20x = 65,662,961,748,688,728
  5. Step 5: Solve for x
    x = 65,662,961,748,688,728/299,563,321.20
  6. Step 6: Final answer
    x = 219,195,599.40

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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.