Home / 74,325,009.60-111,487,514.40-20,472,321.60

Finding the Fourth Proportional to 74,325,009.60, 111,487,514.40 and 20,472,321.60

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Solution

The fourth proportional to 74,325,009.60, 111,487,514.40 and 20,472,321.60 is: 30,708,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,325,009.60 : 111,487,514.40 = 20,472,321.60 : x
  2. Step 2: Convert to fraction form
    74,325,009.60/111,487,514.40 = 20,472,321.60/x
  3. Step 3: Cross multiply
    74,325,009.60x = 111,487,514.40 × 20,472,321.60
  4. Step 4: Simplify right side
    74,325,009.60x = 2,282,408,249,181,431.50
  5. Step 5: Solve for x
    x = 2,282,408,249,181,431.50/74,325,009.60
  6. Step 6: Final answer
    x = 30,708,482.40

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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.