Home / 20,836,431.68-31,255,828.50-6,461,543.12

Finding the Fourth Proportional to 20,836,431.68, 31,255,828.50 and 6,461,543.12

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Solution

The fourth proportional to 20,836,431.68, 31,255,828.50 and 6,461,543.12 is: 9,692,680.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,836,431.68 : 31,255,828.50 = 6,461,543.12 : x
  2. Step 2: Convert to fraction form
    20,836,431.68/31,255,828.50 = 6,461,543.12/x
  3. Step 3: Cross multiply
    20,836,431.68x = 31,255,828.50 × 6,461,543.12
  4. Step 4: Simplify right side
    20,836,431.68x = 201,960,883,447,795.78
  5. Step 5: Solve for x
    x = 201,960,883,447,795.78/20,836,431.68
  6. Step 6: Final answer
    x = 9,692,680.91

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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.