Home / 398,940,463,876.04-550,538,371,061.68-216,037,880,954.24

Finding the Fourth Proportional to 398,940,463,876.04, 550,538,371,061.68 and 216,037,880,954.24

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Solution

The fourth proportional to 398,940,463,876.04, 550,538,371,061.68 and 216,037,880,954.24 is: 298,132,563,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,940,463,876.04 : 550,538,371,061.68 = 216,037,880,954.24 : x
  2. Step 2: Convert to fraction form
    398,940,463,876.04/550,538,371,061.68 = 216,037,880,954.24/x
  3. Step 3: Cross multiply
    398,940,463,876.04x = 550,538,371,061.68 × 216,037,880,954.24
  4. Step 4: Simplify right side
    398,940,463,876.04x = 118,937,143,068,164,442,030,080
  5. Step 5: Solve for x
    x = 118,937,143,068,164,442,030,080/398,940,463,876.04
  6. Step 6: Final answer
    x = 298,132,563,221.57

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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.