Home / 221,332,983.84-332,114,372.64-90,271,411.20

Finding the Fourth Proportional to 221,332,983.84, 332,114,372.64 and 90,271,411.20

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Solution

The fourth proportional to 221,332,983.84, 332,114,372.64 and 90,271,411.20 is: 135,453,977.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,332,983.84 : 332,114,372.64 = 90,271,411.20 : x
  2. Step 2: Convert to fraction form
    221,332,983.84/332,114,372.64 = 90,271,411.20/x
  3. Step 3: Cross multiply
    221,332,983.84x = 332,114,372.64 × 90,271,411.20
  4. Step 4: Simplify right side
    221,332,983.84x = 29,980,433,098,015,468
  5. Step 5: Solve for x
    x = 29,980,433,098,015,468/221,332,983.84
  6. Step 6: Final answer
    x = 135,453,977.88

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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.