Home / 702,113,321.14-968,919,619.92-388,840,967.62

Finding the Fourth Proportional to 702,113,321.14, 968,919,619.92 and 388,840,967.62

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Solution

The fourth proportional to 702,113,321.14, 968,919,619.92 and 388,840,967.62 is: 536,602,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,113,321.14 : 968,919,619.92 = 388,840,967.62 : x
  2. Step 2: Convert to fraction form
    702,113,321.14/968,919,619.92 = 388,840,967.62/x
  3. Step 3: Cross multiply
    702,113,321.14x = 968,919,619.92 × 388,840,967.62
  4. Step 4: Simplify right side
    702,113,321.14x = 376,755,642,555,695,424
  5. Step 5: Solve for x
    x = 376,755,642,555,695,424/702,113,321.14
  6. Step 6: Final answer
    x = 536,602,327.87

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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.