Home / 426,597,323.40-639,895,985.10-297,350,872.20

Finding the Fourth Proportional to 426,597,323.40, 639,895,985.10 and 297,350,872.20

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Solution

The fourth proportional to 426,597,323.40, 639,895,985.10 and 297,350,872.20 is: 446,026,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,597,323.40 : 639,895,985.10 = 297,350,872.20 : x
  2. Step 2: Convert to fraction form
    426,597,323.40/639,895,985.10 = 297,350,872.20/x
  3. Step 3: Cross multiply
    426,597,323.40x = 639,895,985.10 × 297,350,872.20
  4. Step 4: Simplify right side
    426,597,323.40x = 190,273,629,286,763,200
  5. Step 5: Solve for x
    x = 190,273,629,286,763,200/426,597,323.40
  6. Step 6: Final answer
    x = 446,026,308.30

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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.