Home / 111,293,432.20-166,940,148.30-76,656,017.80

Finding the Fourth Proportional to 111,293,432.20, 166,940,148.30 and 76,656,017.80

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Solution

The fourth proportional to 111,293,432.20, 166,940,148.30 and 76,656,017.80 is: 114,984,026.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,293,432.20 : 166,940,148.30 = 76,656,017.80 : x
  2. Step 2: Convert to fraction form
    111,293,432.20/166,940,148.30 = 76,656,017.80/x
  3. Step 3: Cross multiply
    111,293,432.20x = 166,940,148.30 × 76,656,017.80
  4. Step 4: Simplify right side
    111,293,432.20x = 12,796,966,979,619,440
  5. Step 5: Solve for x
    x = 12,796,966,979,619,440/111,293,432.20
  6. Step 6: Final answer
    x = 114,984,026.70

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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.