Home / 403,586,974.86-556,950,022.26-217,947,974.18

Finding the Fourth Proportional to 403,586,974.86, 556,950,022.26 and 217,947,974.18

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Solution

The fourth proportional to 403,586,974.86, 556,950,022.26 and 217,947,974.18 is: 300,768,202.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,586,974.86 : 556,950,022.26 = 217,947,974.18 : x
  2. Step 2: Convert to fraction form
    403,586,974.86/556,950,022.26 = 217,947,974.18/x
  3. Step 3: Cross multiply
    403,586,974.86x = 556,950,022.26 × 217,947,974.18
  4. Step 4: Simplify right side
    403,586,974.86x = 121,386,129,071,072,912
  5. Step 5: Solve for x
    x = 121,386,129,071,072,912/403,586,974.86
  6. Step 6: Final answer
    x = 300,768,202.72

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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.