Home / 208,632,054.39-287,897,832.90-115,805,254.92

Finding the Fourth Proportional to 208,632,054.39, 287,897,832.90 and 115,805,254.92

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Solution

The fourth proportional to 208,632,054.39, 287,897,832.90 and 115,805,254.92 is: 159,803,257.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,632,054.39 : 287,897,832.90 = 115,805,254.92 : x
  2. Step 2: Convert to fraction form
    208,632,054.39/287,897,832.90 = 115,805,254.92/x
  3. Step 3: Cross multiply
    208,632,054.39x = 287,897,832.90 × 115,805,254.92
  4. Step 4: Simplify right side
    208,632,054.39x = 33,340,081,930,441,308
  5. Step 5: Solve for x
    x = 33,340,081,930,441,308/208,632,054.39
  6. Step 6: Final answer
    x = 159,803,257.59

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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.