Home / 100,932,719.37-139,313,068.47-65,738,225.98

Finding the Fourth Proportional to 100,932,719.37, 139,313,068.47 and 65,738,225.98

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Solution

The fourth proportional to 100,932,719.37, 139,313,068.47 and 65,738,225.98 is: 90,735,630.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,932,719.37 : 139,313,068.47 = 65,738,225.98 : x
  2. Step 2: Convert to fraction form
    100,932,719.37/139,313,068.47 = 65,738,225.98/x
  3. Step 3: Cross multiply
    100,932,719.37x = 139,313,068.47 × 65,738,225.98
  4. Step 4: Simplify right side
    100,932,719.37x = 9,158,193,977,048,072
  5. Step 5: Solve for x
    x = 9,158,193,977,048,072/100,932,719.37
  6. Step 6: Final answer
    x = 90,735,630.96

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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.