Home / 208,112,554.53-287,172,154.26-115,269,811.83

Finding the Fourth Proportional to 208,112,554.53, 287,172,154.26 and 115,269,811.83

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Solution

The fourth proportional to 208,112,554.53, 287,172,154.26 and 115,269,811.83 is: 159,059,506.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,112,554.53 : 287,172,154.26 = 115,269,811.83 : x
  2. Step 2: Convert to fraction form
    208,112,554.53/287,172,154.26 = 115,269,811.83/x
  3. Step 3: Cross multiply
    208,112,554.53x = 287,172,154.26 × 115,269,811.83
  4. Step 4: Simplify right side
    208,112,554.53x = 33,102,280,184,365,932
  5. Step 5: Solve for x
    x = 33,102,280,184,365,932/208,112,554.53
  6. Step 6: Final answer
    x = 159,059,506.33

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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.