Home / 512,464,320.80-768,621,831.60-148,920,768.80

Finding the Fourth Proportional to 512,464,320.80, 768,621,831.60 and 148,920,768.80

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Solution

The fourth proportional to 512,464,320.80, 768,621,831.60 and 148,920,768.80 is: 223,359,460.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,464,320.80 : 768,621,831.60 = 148,920,768.80 : x
  2. Step 2: Convert to fraction form
    512,464,320.80/768,621,831.60 = 148,920,768.80/x
  3. Step 3: Cross multiply
    512,464,320.80x = 768,621,831.60 × 148,920,768.80
  4. Step 4: Simplify right side
    512,464,320.80x = 114,463,754,078,336,144
  5. Step 5: Solve for x
    x = 114,463,754,078,336,144/512,464,320.80
  6. Step 6: Final answer
    x = 223,359,460.22

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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.