Home / 120,384,009.60-180,576,014.40-103,065,302.40

Finding the Fourth Proportional to 120,384,009.60, 180,576,014.40 and 103,065,302.40

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Solution

The fourth proportional to 120,384,009.60, 180,576,014.40 and 103,065,302.40 is: 154,597,953.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,384,009.60 : 180,576,014.40 = 103,065,302.40 : x
  2. Step 2: Convert to fraction form
    120,384,009.60/180,576,014.40 = 103,065,302.40/x
  3. Step 3: Cross multiply
    120,384,009.60x = 180,576,014.40 × 103,065,302.40
  4. Step 4: Simplify right side
    120,384,009.60x = 18,611,121,530,322,756
  5. Step 5: Solve for x
    x = 18,611,121,530,322,756/120,384,009.60
  6. Step 6: Final answer
    x = 154,597,953.60

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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.