Home / 78,116,400.96-117,092,577.93-26,283,009.70

Finding the Fourth Proportional to 78,116,400.96, 117,092,577.93 and 26,283,009.70

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Solution

The fourth proportional to 78,116,400.96, 117,092,577.93 and 26,283,009.70 is: 39,396,916.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,116,400.96 : 117,092,577.93 = 26,283,009.70 : x
  2. Step 2: Convert to fraction form
    78,116,400.96/117,092,577.93 = 26,283,009.70/x
  3. Step 3: Cross multiply
    78,116,400.96x = 117,092,577.93 × 26,283,009.70
  4. Step 4: Simplify right side
    78,116,400.96x = 3,077,545,361,727,974
  5. Step 5: Solve for x
    x = 3,077,545,361,727,974/78,116,400.96
  6. Step 6: Final answer
    x = 39,396,916.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.