Home / 20,947,762.60-28,907,459.29-12,127,585.82

Finding the Fourth Proportional to 20,947,762.60, 28,907,459.29 and 12,127,585.82

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Solution

The fourth proportional to 20,947,762.60, 28,907,459.29 and 12,127,585.82 is: 16,735,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,947,762.60 : 28,907,459.29 = 12,127,585.82 : x
  2. Step 2: Convert to fraction form
    20,947,762.60/28,907,459.29 = 12,127,585.82/x
  3. Step 3: Cross multiply
    20,947,762.60x = 28,907,459.29 × 12,127,585.82
  4. Step 4: Simplify right side
    20,947,762.60x = 350,577,693,419,580.94
  5. Step 5: Solve for x
    x = 350,577,693,419,580.94/20,947,762.60
  6. Step 6: Final answer
    x = 16,735,806.12

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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.