Home / 20,836,428.18-31,255,823.24-6,461,539.62

Finding the Fourth Proportional to 20,836,428.18, 31,255,823.24 and 6,461,539.62

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Solution

The fourth proportional to 20,836,428.18, 31,255,823.24 and 6,461,539.62 is: 9,692,675.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836,428.18 : 31,255,823.24 = 6,461,539.62 : x
  2. Step 2: Convert to fraction form
    20,836,428.18/31,255,823.24 = 6,461,539.62/x
  3. Step 3: Cross multiply
    20,836,428.18x = 31,255,823.24 × 6,461,539.62
  4. Step 4: Simplify right side
    20,836,428.18x = 201,960,740,220,976.75
  5. Step 5: Solve for x
    x = 201,960,740,220,976.75/20,836,428.18
  6. Step 6: Final answer
    x = 9,692,675.66

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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.