Home / 136,289,039.87-188,077,893.20-74,409,378.23

Finding the Fourth Proportional to 136,289,039.87, 188,077,893.20 and 74,409,378.23

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Solution

The fourth proportional to 136,289,039.87, 188,077,893.20 and 74,409,378.23 is: 102,684,405.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,289,039.87 : 188,077,893.20 = 74,409,378.23 : x
  2. Step 2: Convert to fraction form
    136,289,039.87/188,077,893.20 = 74,409,378.23/x
  3. Step 3: Cross multiply
    136,289,039.87x = 188,077,893.20 × 74,409,378.23
  4. Step 4: Simplify right side
    136,289,039.87x = 13,994,759,092,197,528
  5. Step 5: Solve for x
    x = 13,994,759,092,197,528/136,289,039.87
  6. Step 6: Final answer
    x = 102,684,405.92

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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.