Home / 299,559,900.80-449,339,851.20-245,140,342.40

Finding the Fourth Proportional to 299,559,900.80, 449,339,851.20 and 245,140,342.40

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Solution

The fourth proportional to 299,559,900.80, 449,339,851.20 and 245,140,342.40 is: 367,710,513.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,559,900.80 : 449,339,851.20 = 245,140,342.40 : x
  2. Step 2: Convert to fraction form
    299,559,900.80/449,339,851.20 = 245,140,342.40/x
  3. Step 3: Cross multiply
    299,559,900.80x = 449,339,851.20 × 245,140,342.40
  4. Step 4: Simplify right side
    299,559,900.80x = 110,151,324,977,133,056
  5. Step 5: Solve for x
    x = 110,151,324,977,133,056/299,559,900.80
  6. Step 6: Final answer
    x = 367,710,513.60

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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.