Home / 455,254,808.21-682,882,704.80-213,087,773.33

Finding the Fourth Proportional to 455,254,808.21, 682,882,704.80 and 213,087,773.33

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Solution

The fourth proportional to 455,254,808.21, 682,882,704.80 and 213,087,773.33 is: 319,631,890.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,254,808.21 : 682,882,704.80 = 213,087,773.33 : x
  2. Step 2: Convert to fraction form
    455,254,808.21/682,882,704.80 = 213,087,773.33/x
  3. Step 3: Cross multiply
    455,254,808.21x = 682,882,704.80 × 213,087,773.33
  4. Step 4: Simplify right side
    455,254,808.21x = 145,513,955,011,399,712
  5. Step 5: Solve for x
    x = 145,513,955,011,399,712/455,254,808.21
  6. Step 6: Final answer
    x = 319,631,890.51

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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.