Home / 221,671,207.40-331,939,940.70-163,850,426.60

Finding the Fourth Proportional to 221,671,207.40, 331,939,940.70 and 163,850,426.60

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Solution

The fourth proportional to 221,671,207.40, 331,939,940.70 and 163,850,426.60 is: 245,356,632.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,671,207.40 : 331,939,940.70 = 163,850,426.60 : x
  2. Step 2: Convert to fraction form
    221,671,207.40/331,939,940.70 = 163,850,426.60/x
  3. Step 3: Cross multiply
    221,671,207.40x = 331,939,940.70 × 163,850,426.60
  4. Step 4: Simplify right side
    221,671,207.40x = 54,388,500,889,273,696
  5. Step 5: Solve for x
    x = 54,388,500,889,273,696/221,671,207.40
  6. Step 6: Final answer
    x = 245,356,632.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.