Home / 51,134,525.20-76,636,469.40-20,808,125.20

Finding the Fourth Proportional to 51,134,525.20, 76,636,469.40 and 20,808,125.20

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Solution

The fourth proportional to 51,134,525.20, 76,636,469.40 and 20,808,125.20 is: 31,185,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,134,525.20 : 76,636,469.40 = 20,808,125.20 : x
  2. Step 2: Convert to fraction form
    51,134,525.20/76,636,469.40 = 20,808,125.20/x
  3. Step 3: Cross multiply
    51,134,525.20x = 76,636,469.40 × 20,808,125.20
  4. Step 4: Simplify right side
    51,134,525.20x = 1,594,661,250,161,169
  5. Step 5: Solve for x
    x = 1,594,661,250,161,169/51,134,525.20
  6. Step 6: Final answer
    x = 31,185,607.84

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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.