Home / 415,172,409.20-622,758,613.80-262,290,028.40

Finding the Fourth Proportional to 415,172,409.20, 622,758,613.80 and 262,290,028.40

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Solution

The fourth proportional to 415,172,409.20, 622,758,613.80 and 262,290,028.40 is: 393,435,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,172,409.20 : 622,758,613.80 = 262,290,028.40 : x
  2. Step 2: Convert to fraction form
    415,172,409.20/622,758,613.80 = 262,290,028.40/x
  3. Step 3: Cross multiply
    415,172,409.20x = 622,758,613.80 × 262,290,028.40
  4. Step 4: Simplify right side
    415,172,409.20x = 163,343,374,499,946,624
  5. Step 5: Solve for x
    x = 163,343,374,499,946,624/415,172,409.20
  6. Step 6: Final answer
    x = 393,435,042.60

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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.