Home / 415,172,380.20-622,758,570.30-262,289,999.40

Finding the Fourth Proportional to 415,172,380.20, 622,758,570.30 and 262,289,999.40

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Solution

The fourth proportional to 415,172,380.20, 622,758,570.30 and 262,289,999.40 is: 393,434,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,172,380.20 : 622,758,570.30 = 262,289,999.40 : x
  2. Step 2: Convert to fraction form
    415,172,380.20/622,758,570.30 = 262,289,999.40/x
  3. Step 3: Cross multiply
    415,172,380.20x = 622,758,570.30 × 262,289,999.40
  4. Step 4: Simplify right side
    415,172,380.20x = 163,343,345,030,331,840
  5. Step 5: Solve for x
    x = 163,343,345,030,331,840/415,172,380.20
  6. Step 6: Final answer
    x = 393,434,999.10

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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.