Home / 398,940,463,895.83-550,538,371,089.05-216,037,880,974.05

Finding the Fourth Proportional to 398,940,463,895.83, 550,538,371,089.05 and 216,037,880,974.05

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Solution

The fourth proportional to 398,940,463,895.83, 550,538,371,089.05 and 216,037,880,974.05 is: 298,132,563,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,940,463,895.83 : 550,538,371,089.05 = 216,037,880,974.05 : x
  2. Step 2: Convert to fraction form
    398,940,463,895.83/550,538,371,089.05 = 216,037,880,974.05/x
  3. Step 3: Cross multiply
    398,940,463,895.83x = 550,538,371,089.05 × 216,037,880,974.05
  4. Step 4: Simplify right side
    398,940,463,895.83x = 118,937,143,084,983,550,738,432
  5. Step 5: Solve for x
    x = 118,937,143,084,983,550,738,432/398,940,463,895.83
  6. Step 6: Final answer
    x = 298,132,563,248.94

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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.