Home / 8,142,403.10-12,213,604.65-7,955,779.10

Finding the Fourth Proportional to 8,142,403.10, 12,213,604.65 and 7,955,779.10

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Solution

The fourth proportional to 8,142,403.10, 12,213,604.65 and 7,955,779.10 is: 11,933,668.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,142,403.10 : 12,213,604.65 = 7,955,779.10 : x
  2. Step 2: Convert to fraction form
    8,142,403.10/12,213,604.65 = 7,955,779.10/x
  3. Step 3: Cross multiply
    8,142,403.10x = 12,213,604.65 × 7,955,779.10
  4. Step 4: Simplify right side
    8,142,403.10x = 97,168,740,610,132.81
  5. Step 5: Solve for x
    x = 97,168,740,610,132.81/8,142,403.10
  6. Step 6: Final answer
    x = 11,933,668.65

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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.