Home / 288,914,868.91-433,450,493.75-206,021,345.38

Finding the Fourth Proportional to 288,914,868.91, 433,450,493.75 and 206,021,345.38

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Solution

The fourth proportional to 288,914,868.91, 433,450,493.75 and 206,021,345.38 is: 309,087,774.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,914,868.91 : 433,450,493.75 = 206,021,345.38 : x
  2. Step 2: Convert to fraction form
    288,914,868.91/433,450,493.75 = 206,021,345.38/x
  3. Step 3: Cross multiply
    288,914,868.91x = 433,450,493.75 × 206,021,345.38
  4. Step 4: Simplify right side
    288,914,868.91x = 89,300,053,877,431,712
  5. Step 5: Solve for x
    x = 89,300,053,877,431,712/288,914,868.91
  6. Step 6: Final answer
    x = 309,087,774.59

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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.