Home / 655,248,471.12-983,010,745.32-212,556,584.41

Finding the Fourth Proportional to 655,248,471.12, 983,010,745.32 and 212,556,584.41

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Solution

The fourth proportional to 655,248,471.12, 983,010,745.32 and 212,556,584.41 is: 318,879,655.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,248,471.12 : 983,010,745.32 = 212,556,584.41 : x
  2. Step 2: Convert to fraction form
    655,248,471.12/983,010,745.32 = 212,556,584.41/x
  3. Step 3: Cross multiply
    655,248,471.12x = 983,010,745.32 × 212,556,584.41
  4. Step 4: Simplify right side
    655,248,471.12x = 208,945,406,461,239,904
  5. Step 5: Solve for x
    x = 208,945,406,461,239,904/655,248,471.12
  6. Step 6: Final answer
    x = 318,879,655.08

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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.