Home / 313,069,731.20-432,076,087.08-189,311,294

Finding the Fourth Proportional to 313,069,731.20, 432,076,087.08 and 189,311,294

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Solution

The fourth proportional to 313,069,731.20, 432,076,087.08 and 189,311,294 is: 261,273,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,069,731.20 : 432,076,087.08 = 189,311,294 : x
  2. Step 2: Convert to fraction form
    313,069,731.20/432,076,087.08 = 189,311,294/x
  3. Step 3: Cross multiply
    313,069,731.20x = 432,076,087.08 × 189,311,294
  4. Step 4: Simplify right side
    313,069,731.20x = 81,796,883,151,571,472
  5. Step 5: Solve for x
    x = 81,796,883,151,571,472/313,069,731.20
  6. Step 6: Final answer
    x = 261,273,687.62

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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.