Home / 120,998,105.20-181,497,157.80-40,208,575.60

Finding the Fourth Proportional to 120,998,105.20, 181,497,157.80 and 40,208,575.60

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Solution

The fourth proportional to 120,998,105.20, 181,497,157.80 and 40,208,575.60 is: 60,312,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,998,105.20 : 181,497,157.80 = 40,208,575.60 : x
  2. Step 2: Convert to fraction form
    120,998,105.20/181,497,157.80 = 40,208,575.60/x
  3. Step 3: Cross multiply
    120,998,105.20x = 181,497,157.80 × 40,208,575.60
  4. Step 4: Simplify right side
    120,998,105.20x = 7,297,742,190,586,430
  5. Step 5: Solve for x
    x = 7,297,742,190,586,430/120,998,105.20
  6. Step 6: Final answer
    x = 60,312,863.40

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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.