Home / 696,225,107.86-960,861,120.51-398,906,787.58

Finding the Fourth Proportional to 696,225,107.86, 960,861,120.51 and 398,906,787.58

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Solution

The fourth proportional to 696,225,107.86, 960,861,120.51 and 398,906,787.58 is: 550,531,744.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,225,107.86 : 960,861,120.51 = 398,906,787.58 : x
  2. Step 2: Convert to fraction form
    696,225,107.86/960,861,120.51 = 398,906,787.58/x
  3. Step 3: Cross multiply
    696,225,107.86x = 960,861,120.51 × 398,906,787.58
  4. Step 4: Simplify right side
    696,225,107.86x = 383,294,022,893,163,328
  5. Step 5: Solve for x
    x = 383,294,022,893,163,328/696,225,107.86
  6. Step 6: Final answer
    x = 550,531,744.07

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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.