Home / 208,496,756.46-287,725,559.49-115,677,042.87

Finding the Fourth Proportional to 208,496,756.46, 287,725,559.49 and 115,677,042.87

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Solution

The fourth proportional to 208,496,756.46, 287,725,559.49 and 115,677,042.87 is: 159,634,338.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,496,756.46 : 287,725,559.49 = 115,677,042.87 : x
  2. Step 2: Convert to fraction form
    208,496,756.46/287,725,559.49 = 115,677,042.87/x
  3. Step 3: Cross multiply
    208,496,756.46x = 287,725,559.49 × 115,677,042.87
  4. Step 4: Simplify right side
    208,496,756.46x = 33,283,241,879,919,468
  5. Step 5: Solve for x
    x = 33,283,241,879,919,468/208,496,756.46
  6. Step 6: Final answer
    x = 159,634,338.90

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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.