Home / 679,288,965.21-1,018,765,158.17-291,067,771.77

Finding the Fourth Proportional to 679,288,965.21, 1,018,765,158.17 and 291,067,771.77

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Solution

The fourth proportional to 679,288,965.21, 1,018,765,158.17 and 291,067,771.77 is: 436,529,547.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,288,965.21 : 1,018,765,158.17 = 291,067,771.77 : x
  2. Step 2: Convert to fraction form
    679,288,965.21/1,018,765,158.17 = 291,067,771.77/x
  3. Step 3: Cross multiply
    679,288,965.21x = 1,018,765,158.17 × 291,067,771.77
  4. Step 4: Simplify right side
    679,288,965.21x = 296,529,704,543,998,144
  5. Step 5: Solve for x
    x = 296,529,704,543,998,144/679,288,965.21
  6. Step 6: Final answer
    x = 436,529,547.41

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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.