Home / 666,794,651.38-920,176,618.92-373,439,219.38

Finding the Fourth Proportional to 666,794,651.38, 920,176,618.92 and 373,439,219.38

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Solution

The fourth proportional to 666,794,651.38, 920,176,618.92 and 373,439,219.38 is: 515,346,122.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,794,651.38 : 920,176,618.92 = 373,439,219.38 : x
  2. Step 2: Convert to fraction form
    666,794,651.38/920,176,618.92 = 373,439,219.38/x
  3. Step 3: Cross multiply
    666,794,651.38x = 920,176,618.92 × 373,439,219.38
  4. Step 4: Simplify right side
    666,794,651.38x = 343,630,038,261,212,544
  5. Step 5: Solve for x
    x = 343,630,038,261,212,544/666,794,651.38
  6. Step 6: Final answer
    x = 515,346,122.75

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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.