Home / 398,940,463,883.67-550,538,371,072.17-216,037,880,961.86

Finding the Fourth Proportional to 398,940,463,883.67, 550,538,371,072.17 and 216,037,880,961.86

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Solution

The fourth proportional to 398,940,463,883.67, 550,538,371,072.17 and 216,037,880,961.86 is: 298,132,563,232.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,940,463,883.67 : 550,538,371,072.17 = 216,037,880,961.86 : x
  2. Step 2: Convert to fraction form
    398,940,463,883.67/550,538,371,072.17 = 216,037,880,961.86/x
  3. Step 3: Cross multiply
    398,940,463,883.67x = 550,538,371,072.17 × 216,037,880,961.86
  4. Step 4: Simplify right side
    398,940,463,883.67x = 118,937,143,074,625,767,342,080
  5. Step 5: Solve for x
    x = 118,937,143,074,625,767,342,080/398,940,463,883.67
  6. Step 6: Final answer
    x = 298,132,563,232.06

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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.