Home / 908,344,299.37-1,253,515,682.28-490,656,769.20

Finding the Fourth Proportional to 908,344,299.37, 1,253,515,682.28 and 490,656,769.20

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Solution

The fourth proportional to 908,344,299.37, 1,253,515,682.28 and 490,656,769.20 is: 677,106,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,299.37 : 1,253,515,682.28 = 490,656,769.20 : x
  2. Step 2: Convert to fraction form
    908,344,299.37/1,253,515,682.28 = 490,656,769.20/x
  3. Step 3: Cross multiply
    908,344,299.37x = 1,253,515,682.28 × 490,656,769.20
  4. Step 4: Simplify right side
    908,344,299.37x = 615,045,954,809,038,464
  5. Step 5: Solve for x
    x = 615,045,954,809,038,464/908,344,299.37
  6. Step 6: Final answer
    x = 677,106,638.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.