Home / 139,328,298.64-192,276,750.96-76,607,041.60

Finding the Fourth Proportional to 139,328,298.64, 192,276,750.96 and 76,607,041.60

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Solution

The fourth proportional to 139,328,298.64, 192,276,750.96 and 76,607,041.60 is: 105,719,751.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,328,298.64 : 192,276,750.96 = 76,607,041.60 : x
  2. Step 2: Convert to fraction form
    139,328,298.64/192,276,750.96 = 76,607,041.60/x
  3. Step 3: Cross multiply
    139,328,298.64x = 192,276,750.96 × 76,607,041.60
  4. Step 4: Simplify right side
    139,328,298.64x = 14,729,753,059,505,560
  5. Step 5: Solve for x
    x = 14,729,753,059,505,560/139,328,298.64
  6. Step 6: Final answer
    x = 105,719,751.14

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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.