Home / 630,405,698.20-945,608,547.30-199,584,194.20

Finding the Fourth Proportional to 630,405,698.20, 945,608,547.30 and 199,584,194.20

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Solution

The fourth proportional to 630,405,698.20, 945,608,547.30 and 199,584,194.20 is: 299,376,291.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,405,698.20 : 945,608,547.30 = 199,584,194.20 : x
  2. Step 2: Convert to fraction form
    630,405,698.20/945,608,547.30 = 199,584,194.20/x
  3. Step 3: Cross multiply
    630,405,698.20x = 945,608,547.30 × 199,584,194.20
  4. Step 4: Simplify right side
    630,405,698.20x = 188,728,519,941,503,072
  5. Step 5: Solve for x
    x = 188,728,519,941,503,072/630,405,698.20
  6. Step 6: Final answer
    x = 299,376,291.30

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Similar ratio
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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.