Home / 204,768,052.80-307,152,079.20-128,240,548.80

Finding the Fourth Proportional to 204,768,052.80, 307,152,079.20 and 128,240,548.80

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Solution

The fourth proportional to 204,768,052.80, 307,152,079.20 and 128,240,548.80 is: 192,360,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,768,052.80 : 307,152,079.20 = 128,240,548.80 : x
  2. Step 2: Convert to fraction form
    204,768,052.80/307,152,079.20 = 128,240,548.80/x
  3. Step 3: Cross multiply
    204,768,052.80x = 307,152,079.20 × 128,240,548.80
  4. Step 4: Simplify right side
    204,768,052.80x = 39,389,351,201,669,064
  5. Step 5: Solve for x
    x = 39,389,351,201,669,064/204,768,052.80
  6. Step 6: Final answer
    x = 192,360,823.20

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1.5x scale

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.