Home / 7,268,539.60-10,902,809.40-7,128,571.60

Finding the Fourth Proportional to 7,268,539.60, 10,902,809.40 and 7,128,571.60

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Solution

The fourth proportional to 7,268,539.60, 10,902,809.40 and 7,128,571.60 is: 10,692,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,268,539.60 : 10,902,809.40 = 7,128,571.60 : x
  2. Step 2: Convert to fraction form
    7,268,539.60/10,902,809.40 = 7,128,571.60/x
  3. Step 3: Cross multiply
    7,268,539.60x = 10,902,809.40 × 7,128,571.60
  4. Step 4: Simplify right side
    7,268,539.60x = 77,721,457,449,053.03
  5. Step 5: Solve for x
    x = 77,721,457,449,053.03/7,268,539.60
  6. Step 6: Final answer
    x = 10,692,857.40

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Double scale
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Similar ratio
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1.5x scale

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.