Home / 908,344,299.12-1,253,515,681.94-490,656,768.95

Finding the Fourth Proportional to 908,344,299.12, 1,253,515,681.94 and 490,656,768.95

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Solution

The fourth proportional to 908,344,299.12, 1,253,515,681.94 and 490,656,768.95 is: 677,106,637.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,344,299.12 : 1,253,515,681.94 = 490,656,768.95 : x
  2. Step 2: Convert to fraction form
    908,344,299.12/1,253,515,681.94 = 490,656,768.95/x
  3. Step 3: Cross multiply
    908,344,299.12x = 1,253,515,681.94 × 490,656,768.95
  4. Step 4: Simplify right side
    908,344,299.12x = 615,045,954,328,836,224
  5. Step 5: Solve for x
    x = 615,045,954,328,836,224/908,344,299.12
  6. Step 6: Final answer
    x = 677,106,637.79

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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.