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Finding the Fourth Proportional to 299,560,557.80, 449,340,836.70 and 245,140,999.40

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Solution

The fourth proportional to 299,560,557.80, 449,340,836.70 and 245,140,999.40 is: 367,711,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,560,557.80 : 449,340,836.70 = 245,140,999.40 : x
  2. Step 2: Convert to fraction form
    299,560,557.80/449,340,836.70 = 245,140,999.40/x
  3. Step 3: Cross multiply
    299,560,557.80x = 449,340,836.70 × 245,140,999.40
  4. Step 4: Simplify right side
    299,560,557.80x = 110,151,861,779,870,192
  5. Step 5: Solve for x
    x = 110,151,861,779,870,192/299,560,557.80
  6. Step 6: Final answer
    x = 367,711,499.10

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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.