Home / 386,207,890.10-579,983,681.55-204,809,362.10

Finding the Fourth Proportional to 386,207,890.10, 579,983,681.55 and 204,809,362.10

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Solution

The fourth proportional to 386,207,890.10, 579,983,681.55 and 204,809,362.10 is: 307,570,329.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,207,890.10 : 579,983,681.55 = 204,809,362.10 : x
  2. Step 2: Convert to fraction form
    386,207,890.10/579,983,681.55 = 204,809,362.10/x
  3. Step 3: Cross multiply
    386,207,890.10x = 579,983,681.55 × 204,809,362.10
  4. Step 4: Simplify right side
    386,207,890.10x = 118,786,087,846,665,024
  5. Step 5: Solve for x
    x = 118,786,087,846,665,024/386,207,890.10
  6. Step 6: Final answer
    x = 307,570,329.07

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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.