Home / 398,940,463,895.58-550,538,371,088.70-216,037,880,973.80

Finding the Fourth Proportional to 398,940,463,895.58, 550,538,371,088.70 and 216,037,880,973.80

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Solution

The fourth proportional to 398,940,463,895.58, 550,538,371,088.70 and 216,037,880,973.80 is: 298,132,563,248.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,940,463,895.58 : 550,538,371,088.70 = 216,037,880,973.80 : x
  2. Step 2: Convert to fraction form
    398,940,463,895.58/550,538,371,088.70 = 216,037,880,973.80/x
  3. Step 3: Cross multiply
    398,940,463,895.58x = 550,538,371,088.70 × 216,037,880,973.80
  4. Step 4: Simplify right side
    398,940,463,895.58x = 118,937,143,084,770,295,545,856
  5. Step 5: Solve for x
    x = 118,937,143,084,770,295,545,856/398,940,463,895.58
  6. Step 6: Final answer
    x = 298,132,563,248.59

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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.