Home / 761,892,932.16-1,142,565,372.57-263,768,189.88

Finding the Fourth Proportional to 761,892,932.16, 1,142,565,372.57 and 263,768,189.88

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Solution

The fourth proportional to 761,892,932.16, 1,142,565,372.57 and 263,768,189.88 is: 395,557,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,892,932.16 : 1,142,565,372.57 = 263,768,189.88 : x
  2. Step 2: Convert to fraction form
    761,892,932.16/1,142,565,372.57 = 263,768,189.88/x
  3. Step 3: Cross multiply
    761,892,932.16x = 1,142,565,372.57 × 263,768,189.88
  4. Step 4: Simplify right side
    761,892,932.16x = 301,372,400,142,356,672
  5. Step 5: Solve for x
    x = 301,372,400,142,356,672/761,892,932.16
  6. Step 6: Final answer
    x = 395,557,416.82

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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.