Home / 12,126,765.60-18,190,148.40-8,300,390.40

Finding the Fourth Proportional to 12,126,765.60, 18,190,148.40 and 8,300,390.40

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Solution

The fourth proportional to 12,126,765.60, 18,190,148.40 and 8,300,390.40 is: 12,450,585.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,126,765.60 : 18,190,148.40 = 8,300,390.40 : x
  2. Step 2: Convert to fraction form
    12,126,765.60/18,190,148.40 = 8,300,390.40/x
  3. Step 3: Cross multiply
    12,126,765.60x = 18,190,148.40 × 8,300,390.40
  4. Step 4: Simplify right side
    12,126,765.60x = 150,985,333,153,935.34
  5. Step 5: Solve for x
    x = 150,985,333,153,935.34/12,126,765.60
  6. Step 6: Final answer
    x = 12,450,585.60

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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.