Home / 9,161,819.60-13,742,729.40-8,321,320.40

Finding the Fourth Proportional to 9,161,819.60, 13,742,729.40 and 8,321,320.40

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Solution

The fourth proportional to 9,161,819.60, 13,742,729.40 and 8,321,320.40 is: 12,481,980.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161,819.60 : 13,742,729.40 = 8,321,320.40 : x
  2. Step 2: Convert to fraction form
    9,161,819.60/13,742,729.40 = 8,321,320.40/x
  3. Step 3: Cross multiply
    9,161,819.60x = 13,742,729.40 × 8,321,320.40
  4. Step 4: Simplify right side
    9,161,819.60x = 114,357,654,507,899.77
  5. Step 5: Solve for x
    x = 114,357,654,507,899.77/9,161,819.60
  6. Step 6: Final answer
    x = 12,481,980.60

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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.