Home / 426,597,324.40-639,895,986.60-297,350,873.20

Finding the Fourth Proportional to 426,597,324.40, 639,895,986.60 and 297,350,873.20

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Solution

The fourth proportional to 426,597,324.40, 639,895,986.60 and 297,350,873.20 is: 446,026,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,597,324.40 : 639,895,986.60 = 297,350,873.20 : x
  2. Step 2: Convert to fraction form
    426,597,324.40/639,895,986.60 = 297,350,873.20/x
  3. Step 3: Cross multiply
    426,597,324.40x = 639,895,986.60 × 297,350,873.20
  4. Step 4: Simplify right side
    426,597,324.40x = 190,273,630,372,685,504
  5. Step 5: Solve for x
    x = 190,273,630,372,685,504/426,597,324.40
  6. Step 6: Final answer
    x = 446,026,309.80

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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.