Home / 10,505,547.60-15,758,321.40-8,379,783.60

Finding the Fourth Proportional to 10,505,547.60, 15,758,321.40 and 8,379,783.60

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Solution

The fourth proportional to 10,505,547.60, 15,758,321.40 and 8,379,783.60 is: 12,569,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505,547.60 : 15,758,321.40 = 8,379,783.60 : x
  2. Step 2: Convert to fraction form
    10,505,547.60/15,758,321.40 = 8,379,783.60/x
  3. Step 3: Cross multiply
    10,505,547.60x = 15,758,321.40 × 8,379,783.60
  4. Step 4: Simplify right side
    10,505,547.60x = 132,051,323,231,249.03
  5. Step 5: Solve for x
    x = 132,051,323,231,249.03/10,505,547.60
  6. Step 6: Final answer
    x = 12,569,675.40

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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.