Home / 228,571,494.88-315,432,818.32-129,472,817.76

Finding the Fourth Proportional to 228,571,494.88, 315,432,818.32 and 129,472,817.76

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Solution

The fourth proportional to 228,571,494.88, 315,432,818.32 and 129,472,817.76 is: 178,674,842.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,571,494.88 : 315,432,818.32 = 129,472,817.76 : x
  2. Step 2: Convert to fraction form
    228,571,494.88/315,432,818.32 = 129,472,817.76/x
  3. Step 3: Cross multiply
    228,571,494.88x = 315,432,818.32 × 129,472,817.76
  4. Step 4: Simplify right side
    228,571,494.88x = 40,839,975,801,868,552
  5. Step 5: Solve for x
    x = 40,839,975,801,868,552/228,571,494.88
  6. Step 6: Final answer
    x = 178,674,842.30

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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.