Home / 208,090,529.32-287,161,088.34-115,269,000.52

Finding the Fourth Proportional to 208,090,529.32, 287,161,088.34 and 115,269,000.52

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Solution

The fourth proportional to 208,090,529.32, 287,161,088.34 and 115,269,000.52 is: 159,069,092.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,090,529.32 : 287,161,088.34 = 115,269,000.52 : x
  2. Step 2: Convert to fraction form
    208,090,529.32/287,161,088.34 = 115,269,000.52/x
  3. Step 3: Cross multiply
    208,090,529.32x = 287,161,088.34 × 115,269,000.52
  4. Step 4: Simplify right side
    208,090,529.32x = 33,100,771,641,187,220
  5. Step 5: Solve for x
    x = 33,100,771,641,187,220/208,090,529.32
  6. Step 6: Final answer
    x = 159,069,092.43

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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.