Home / 120,765,358.40-180,980,444.48-55,025,837.42

Finding the Fourth Proportional to 120,765,358.40, 180,980,444.48 and 55,025,837.42

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Solution

The fourth proportional to 120,765,358.40, 180,980,444.48 and 55,025,837.42 is: 82,462,393.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,765,358.40 : 180,980,444.48 = 55,025,837.42 : x
  2. Step 2: Convert to fraction form
    120,765,358.40/180,980,444.48 = 55,025,837.42/x
  3. Step 3: Cross multiply
    120,765,358.40x = 180,980,444.48 × 55,025,837.42
  4. Step 4: Simplify right side
    120,765,358.40x = 9,958,600,512,975,784
  5. Step 5: Solve for x
    x = 9,958,600,512,975,784/120,765,358.40
  6. Step 6: Final answer
    x = 82,462,393.56

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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.