Home / 208,279,244.16-287,425,350.72-115,459,516.80

Finding the Fourth Proportional to 208,279,244.16, 287,425,350.72 and 115,459,516.80

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Solution

The fourth proportional to 208,279,244.16, 287,425,350.72 and 115,459,516.80 is: 159,334,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,279,244.16 : 287,425,350.72 = 115,459,516.80 : x
  2. Step 2: Convert to fraction form
    208,279,244.16/287,425,350.72 = 115,459,516.80/x
  3. Step 3: Cross multiply
    208,279,244.16x = 287,425,350.72 × 115,459,516.80
  4. Step 4: Simplify right side
    208,279,244.16x = 33,185,992,110,201,736
  5. Step 5: Solve for x
    x = 33,185,992,110,201,736/208,279,244.16
  6. Step 6: Final answer
    x = 159,334,129.74

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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.