Home / 20,993,313.60-31,489,970.40-7,525,281.60

Finding the Fourth Proportional to 20,993,313.60, 31,489,970.40 and 7,525,281.60

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Solution

The fourth proportional to 20,993,313.60, 31,489,970.40 and 7,525,281.60 is: 11,287,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,313.60 : 31,489,970.40 = 7,525,281.60 : x
  2. Step 2: Convert to fraction form
    20,993,313.60/31,489,970.40 = 7,525,281.60/x
  3. Step 3: Cross multiply
    20,993,313.60x = 31,489,970.40 × 7,525,281.60
  4. Step 4: Simplify right side
    20,993,313.60x = 236,970,894,835,664.62
  5. Step 5: Solve for x
    x = 236,970,894,835,664.62/20,993,313.60
  6. Step 6: Final answer
    x = 11,287,922.40

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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.