Home / 120,183,458.60-180,275,187.90-118,908,000.20

Finding the Fourth Proportional to 120,183,458.60, 180,275,187.90 and 118,908,000.20

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Solution

The fourth proportional to 120,183,458.60, 180,275,187.90 and 118,908,000.20 is: 178,362,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,183,458.60 : 180,275,187.90 = 118,908,000.20 : x
  2. Step 2: Convert to fraction form
    120,183,458.60/180,275,187.90 = 118,908,000.20/x
  3. Step 3: Cross multiply
    120,183,458.60x = 180,275,187.90 × 118,908,000.20
  4. Step 4: Simplify right side
    120,183,458.60x = 21,436,162,078,868,240
  5. Step 5: Solve for x
    x = 21,436,162,078,868,240/120,183,458.60
  6. Step 6: Final answer
    x = 178,362,000.30

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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.