Home / 505,113,678-691,994,159.28-486,228,854.64

Finding the Fourth Proportional to 505,113,678, 691,994,159.28 and 486,228,854.64

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Solution

The fourth proportional to 505,113,678, 691,994,159.28 and 486,228,854.64 is: 666,122,384.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,113,678 : 691,994,159.28 = 486,228,854.64 : x
  2. Step 2: Convert to fraction form
    505,113,678/691,994,159.28 = 486,228,854.64/x
  3. Step 3: Cross multiply
    505,113,678x = 691,994,159.28 × 486,228,854.64
  4. Step 4: Simplify right side
    505,113,678x = 336,467,527,484,284,096
  5. Step 5: Solve for x
    x = 336,467,527,484,284,096/505,113,678
  6. Step 6: Final answer
    x = 666,122,384.21

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.