Home / 81,651,346.40-122,477,019.60-36,301,714.40

Finding the Fourth Proportional to 81,651,346.40, 122,477,019.60 and 36,301,714.40

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Solution

The fourth proportional to 81,651,346.40, 122,477,019.60 and 36,301,714.40 is: 54,452,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651,346.40 : 122,477,019.60 = 36,301,714.40 : x
  2. Step 2: Convert to fraction form
    81,651,346.40/122,477,019.60 = 36,301,714.40/x
  3. Step 3: Cross multiply
    81,651,346.40x = 122,477,019.60 × 36,301,714.40
  4. Step 4: Simplify right side
    81,651,346.40x = 4,446,125,786,082,402
  5. Step 5: Solve for x
    x = 4,446,125,786,082,402/81,651,346.40
  6. Step 6: Final answer
    x = 54,452,571.60

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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.