Home / 492,099,866.70-738,093,812.85-128,630,964.30

Finding the Fourth Proportional to 492,099,866.70, 738,093,812.85 and 128,630,964.30

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Solution

The fourth proportional to 492,099,866.70, 738,093,812.85 and 128,630,964.30 is: 192,931,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,099,866.70 : 738,093,812.85 = 128,630,964.30 : x
  2. Step 2: Convert to fraction form
    492,099,866.70/738,093,812.85 = 128,630,964.30/x
  3. Step 3: Cross multiply
    492,099,866.70x = 738,093,812.85 × 128,630,964.30
  4. Step 4: Simplify right side
    492,099,866.70x = 94,941,718,890,759,232
  5. Step 5: Solve for x
    x = 94,941,718,890,759,232/492,099,866.70
  6. Step 6: Final answer
    x = 192,931,811.84

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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.