Home / 137,515,927.76-189,775,570.44-75,637,889.84

Finding the Fourth Proportional to 137,515,927.76, 189,775,570.44 and 75,637,889.84

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Solution

The fourth proportional to 137,515,927.76, 189,775,570.44 and 75,637,889.84 is: 104,382,262.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,515,927.76 : 189,775,570.44 = 75,637,889.84 : x
  2. Step 2: Convert to fraction form
    137,515,927.76/189,775,570.44 = 75,637,889.84/x
  3. Step 3: Cross multiply
    137,515,927.76x = 189,775,570.44 × 75,637,889.84
  4. Step 4: Simplify right side
    137,515,927.76x = 14,354,223,691,263,880
  5. Step 5: Solve for x
    x = 14,354,223,691,263,880/137,515,927.76
  6. Step 6: Final answer
    x = 104,382,262.66

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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.