Home / 1,178,736,575.20-1,768,110,986.40-305,276,768.80

Finding the Fourth Proportional to 1,178,736,575.20, 1,768,110,986.40 and 305,276,768.80

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Solution

The fourth proportional to 1,178,736,575.20, 1,768,110,986.40 and 305,276,768.80 is: 457,916,739.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,736,575.20 : 1,768,110,986.40 = 305,276,768.80 : x
  2. Step 2: Convert to fraction form
    1,178,736,575.20/1,768,110,986.40 = 305,276,768.80/x
  3. Step 3: Cross multiply
    1,178,736,575.20x = 1,768,110,986.40 × 305,276,768.80
  4. Step 4: Simplify right side
    1,178,736,575.20x = 539,763,208,807,972,800
  5. Step 5: Solve for x
    x = 539,763,208,807,972,800/1,178,736,575.20
  6. Step 6: Final answer
    x = 457,916,739.13

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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.