Home / 198,525,775.20-297,788,662.80-147,507,439.20

Finding the Fourth Proportional to 198,525,775.20, 297,788,662.80 and 147,507,439.20

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Solution

The fourth proportional to 198,525,775.20, 297,788,662.80 and 147,507,439.20 is: 221,261,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,525,775.20 : 297,788,662.80 = 147,507,439.20 : x
  2. Step 2: Convert to fraction form
    198,525,775.20/297,788,662.80 = 147,507,439.20/x
  3. Step 3: Cross multiply
    198,525,775.20x = 297,788,662.80 × 147,507,439.20
  4. Step 4: Simplify right side
    198,525,775.20x = 43,926,043,072,420,296
  5. Step 5: Solve for x
    x = 43,926,043,072,420,296/198,525,775.20
  6. Step 6: Final answer
    x = 221,261,158.80

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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.