Home / 7,128,609.60-10,692,914.40-4,294,257.60

Finding the Fourth Proportional to 7,128,609.60, 10,692,914.40 and 4,294,257.60

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Solution

The fourth proportional to 7,128,609.60, 10,692,914.40 and 4,294,257.60 is: 6,441,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,609.60 : 10,692,914.40 = 4,294,257.60 : x
  2. Step 2: Convert to fraction form
    7,128,609.60/10,692,914.40 = 4,294,257.60/x
  3. Step 3: Cross multiply
    7,128,609.60x = 10,692,914.40 × 4,294,257.60
  4. Step 4: Simplify right side
    7,128,609.60x = 45,918,128,928,349.44
  5. Step 5: Solve for x
    x = 45,918,128,928,349.44/7,128,609.60
  6. Step 6: Final answer
    x = 6,441,386.40

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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.