Home / 120,458,807.54-166,234,206.21-65,454,662.42

Finding the Fourth Proportional to 120,458,807.54, 166,234,206.21 and 65,454,662.42

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Solution

The fourth proportional to 120,458,807.54, 166,234,206.21 and 65,454,662.42 is: 90,328,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,458,807.54 : 166,234,206.21 = 65,454,662.42 : x
  2. Step 2: Convert to fraction form
    120,458,807.54/166,234,206.21 = 65,454,662.42/x
  3. Step 3: Cross multiply
    120,458,807.54x = 166,234,206.21 × 65,454,662.42
  4. Step 4: Simplify right side
    120,458,807.54x = 10,880,803,850,132,218
  5. Step 5: Solve for x
    x = 10,880,803,850,132,218/120,458,807.54
  6. Step 6: Final answer
    x = 90,328,005.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.