Home / 428,597,049.92-642,959,458.54-152,225,045.28

Finding the Fourth Proportional to 428,597,049.92, 642,959,458.54 and 152,225,045.28

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Solution

The fourth proportional to 428,597,049.92, 642,959,458.54 and 152,225,045.28 is: 228,360,257.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,597,049.92 : 642,959,458.54 = 152,225,045.28 : x
  2. Step 2: Convert to fraction form
    428,597,049.92/642,959,458.54 = 152,225,045.28/x
  3. Step 3: Cross multiply
    428,597,049.92x = 642,959,458.54 × 152,225,045.28
  4. Step 4: Simplify right side
    428,597,049.92x = 97,874,532,689,455,776
  5. Step 5: Solve for x
    x = 97,874,532,689,455,776/428,597,049.92
  6. Step 6: Final answer
    x = 228,360,257.51

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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.