Home / 208,171,542.72-287,276,730.86-115,352,050.53

Finding the Fourth Proportional to 208,171,542.72, 287,276,730.86 and 115,352,050.53

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Solution

The fourth proportional to 208,171,542.72, 287,276,730.86 and 115,352,050.53 is: 159,185,830.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,171,542.72 : 287,276,730.86 = 115,352,050.53 : x
  2. Step 2: Convert to fraction form
    208,171,542.72/287,276,730.86 = 115,352,050.53/x
  3. Step 3: Cross multiply
    208,171,542.72x = 287,276,730.86 × 115,352,050.53
  4. Step 4: Simplify right side
    208,171,542.72x = 33,137,959,974,544,312
  5. Step 5: Solve for x
    x = 33,137,959,974,544,312/208,171,542.72
  6. Step 6: Final answer
    x = 159,185,830.79

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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.