Home / 9,308,028.60-12,815,840.61-7,909,640.64

Finding the Fourth Proportional to 9,308,028.60, 12,815,840.61 and 7,909,640.64

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Solution

The fourth proportional to 9,308,028.60, 12,815,840.61 and 7,909,640.64 is: 10,890,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,308,028.60 : 12,815,840.61 = 7,909,640.64 : x
  2. Step 2: Convert to fraction form
    9,308,028.60/12,815,840.61 = 7,909,640.64/x
  3. Step 3: Cross multiply
    9,308,028.60x = 12,815,840.61 × 7,909,640.64
  4. Step 4: Simplify right side
    9,308,028.60x = 101,368,693,724,618.38
  5. Step 5: Solve for x
    x = 101,368,693,724,618.38/9,308,028.60
  6. Step 6: Final answer
    x = 10,890,457.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.