Home / 505,009,089.40-697,393,849.26-477,496,577.56

Finding the Fourth Proportional to 505,009,089.40, 697,393,849.26 and 477,496,577.56

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Solution

The fourth proportional to 505,009,089.40, 697,393,849.26 and 477,496,577.56 is: 659,400,361.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,009,089.40 : 697,393,849.26 = 477,496,577.56 : x
  2. Step 2: Convert to fraction form
    505,009,089.40/697,393,849.26 = 477,496,577.56/x
  3. Step 3: Cross multiply
    505,009,089.40x = 697,393,849.26 × 477,496,577.56
  4. Step 4: Simplify right side
    505,009,089.40x = 333,003,176,233,044,544
  5. Step 5: Solve for x
    x = 333,003,176,233,044,544/505,009,089.40
  6. Step 6: Final answer
    x = 659,400,361.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.