Home / 208,182,419.46-287,293,439.25-115,364,476.98

Finding the Fourth Proportional to 208,182,419.46, 287,293,439.25 and 115,364,476.98

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Solution

The fourth proportional to 208,182,419.46, 287,293,439.25 and 115,364,476.98 is: 159,203,920.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,182,419.46 : 287,293,439.25 = 115,364,476.98 : x
  2. Step 2: Convert to fraction form
    208,182,419.46/287,293,439.25 = 115,364,476.98/x
  3. Step 3: Cross multiply
    208,182,419.46x = 287,293,439.25 × 115,364,476.98
  4. Step 4: Simplify right side
    208,182,419.46x = 33,143,457,358,861,656
  5. Step 5: Solve for x
    x = 33,143,457,358,861,656/208,182,419.46
  6. Step 6: Final answer
    x = 159,203,920.51

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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.