Home / 398,940,463,872.05-550,538,371,056.15-216,037,880,950.23

Finding the Fourth Proportional to 398,940,463,872.05, 550,538,371,056.15 and 216,037,880,950.23

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Solution

The fourth proportional to 398,940,463,872.05, 550,538,371,056.15 and 216,037,880,950.23 is: 298,132,563,216.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,940,463,872.05 : 550,538,371,056.15 = 216,037,880,950.23 : x
  2. Step 2: Convert to fraction form
    398,940,463,872.05/550,538,371,056.15 = 216,037,880,950.23/x
  3. Step 3: Cross multiply
    398,940,463,872.05x = 550,538,371,056.15 × 216,037,880,950.23
  4. Step 4: Simplify right side
    398,940,463,872.05x = 118,937,143,064,762,089,734,144
  5. Step 5: Solve for x
    x = 118,937,143,064,762,089,734,144/398,940,463,872.05
  6. Step 6: Final answer
    x = 298,132,563,216.02

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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.