Home / 672,136,076.64-1,007,629,054.25-257,910,157.41

Finding the Fourth Proportional to 672,136,076.64, 1,007,629,054.25 and 257,910,157.41

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Solution

The fourth proportional to 672,136,076.64, 1,007,629,054.25 and 257,910,157.41 is: 386,644,575.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,136,076.64 : 1,007,629,054.25 = 257,910,157.41 : x
  2. Step 2: Convert to fraction form
    672,136,076.64/1,007,629,054.25 = 257,910,157.41/x
  3. Step 3: Cross multiply
    672,136,076.64x = 1,007,629,054.25 × 257,910,157.41
  4. Step 4: Simplify right side
    672,136,076.64x = 259,877,767,992,506,912
  5. Step 5: Solve for x
    x = 259,877,767,992,506,912/672,136,076.64
  6. Step 6: Final answer
    x = 386,644,575.44

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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.