Home / 208,686,855.94-287,982,381.42-115,864,977.22

Finding the Fourth Proportional to 208,686,855.94, 287,982,381.42 and 115,864,977.22

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Solution

The fourth proportional to 208,686,855.94, 287,982,381.42 and 115,864,977.22 is: 159,890,626.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,686,855.94 : 287,982,381.42 = 115,864,977.22 : x
  2. Step 2: Convert to fraction form
    208,686,855.94/287,982,381.42 = 115,864,977.22/x
  3. Step 3: Cross multiply
    208,686,855.94x = 287,982,381.42 × 115,864,977.22
  4. Step 4: Simplify right side
    208,686,855.94x = 33,367,072,062,989,652
  5. Step 5: Solve for x
    x = 33,367,072,062,989,652/208,686,855.94
  6. Step 6: Final answer
    x = 159,890,626.14

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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.