Home / 105,714,095.68-145,947,997.88-66,589,409.28

Finding the Fourth Proportional to 105,714,095.68, 145,947,997.88 and 66,589,409.28

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Solution

The fourth proportional to 105,714,095.68, 145,947,997.88 and 66,589,409.28 is: 91,932,782.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,714,095.68 : 145,947,997.88 = 66,589,409.28 : x
  2. Step 2: Convert to fraction form
    105,714,095.68/145,947,997.88 = 66,589,409.28/x
  3. Step 3: Cross multiply
    105,714,095.68x = 145,947,997.88 × 66,589,409.28
  4. Step 4: Simplify right side
    105,714,095.68x = 9,718,590,964,427,892
  5. Step 5: Solve for x
    x = 9,718,590,964,427,892/105,714,095.68
  6. Step 6: Final answer
    x = 91,932,782.49

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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.