Home / 661,716,521.20-992,612,106.60-201,669,698.80

Finding the Fourth Proportional to 661,716,521.20, 992,612,106.60 and 201,669,698.80

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Solution

The fourth proportional to 661,716,521.20, 992,612,106.60 and 201,669,698.80 is: 302,515,923.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,716,521.20 : 992,612,106.60 = 201,669,698.80 : x
  2. Step 2: Convert to fraction form
    661,716,521.20/992,612,106.60 = 201,669,698.80/x
  3. Step 3: Cross multiply
    661,716,521.20x = 992,612,106.60 × 201,669,698.80
  4. Step 4: Simplify right side
    661,716,521.20x = 200,179,784,563,255,520
  5. Step 5: Solve for x
    x = 200,179,784,563,255,520/661,716,521.20
  6. Step 6: Final answer
    x = 302,515,923.59

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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.