Home / 120,384,117.60-180,576,176.40-103,065,410.40

Finding the Fourth Proportional to 120,384,117.60, 180,576,176.40 and 103,065,410.40

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Solution

The fourth proportional to 120,384,117.60, 180,576,176.40 and 103,065,410.40 is: 154,598,115.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,384,117.60 : 180,576,176.40 = 103,065,410.40 : x
  2. Step 2: Convert to fraction form
    120,384,117.60/180,576,176.40 = 103,065,410.40/x
  3. Step 3: Cross multiply
    120,384,117.60x = 180,576,176.40 × 103,065,410.40
  4. Step 4: Simplify right side
    120,384,117.60x = 18,611,157,729,128,796
  5. Step 5: Solve for x
    x = 18,611,157,729,128,796/120,384,117.60
  6. Step 6: Final answer
    x = 154,598,115.60

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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.