Home / 20,862,066.60-31,293,099.90-13,303,794.60

Finding the Fourth Proportional to 20,862,066.60, 31,293,099.90 and 13,303,794.60

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Solution

The fourth proportional to 20,862,066.60, 31,293,099.90 and 13,303,794.60 is: 19,955,691.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,862,066.60 : 31,293,099.90 = 13,303,794.60 : x
  2. Step 2: Convert to fraction form
    20,862,066.60/31,293,099.90 = 13,303,794.60/x
  3. Step 3: Cross multiply
    20,862,066.60x = 31,293,099.90 × 13,303,794.60
  4. Step 4: Simplify right side
    20,862,066.60x = 416,316,973,466,880.50
  5. Step 5: Solve for x
    x = 416,316,973,466,880.50/20,862,066.60
  6. Step 6: Final answer
    x = 19,955,691.90

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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.