Home / 890,139,125.34-1,335,401,507.61-268,302,340.44

Finding the Fourth Proportional to 890,139,125.34, 1,335,401,507.61 and 268,302,340.44

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Solution

The fourth proportional to 890,139,125.34, 1,335,401,507.61 and 268,302,340.44 is: 402,511,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,139,125.34 : 1,335,401,507.61 = 268,302,340.44 : x
  2. Step 2: Convert to fraction form
    890,139,125.34/1,335,401,507.61 = 268,302,340.44/x
  3. Step 3: Cross multiply
    890,139,125.34x = 1,335,401,507.61 × 268,302,340.44
  4. Step 4: Simplify right side
    890,139,125.34x = 358,291,349,918,867,456
  5. Step 5: Solve for x
    x = 358,291,349,918,867,456/890,139,125.34
  6. Step 6: Final answer
    x = 402,511,629.61

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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.