Home / 139,168,989.68-192,041,771.45-76,441,845.92

Finding the Fourth Proportional to 139,168,989.68, 192,041,771.45 and 76,441,845.92

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Solution

The fourth proportional to 139,168,989.68, 192,041,771.45 and 76,441,845.92 is: 105,483,466.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,168,989.68 : 192,041,771.45 = 76,441,845.92 : x
  2. Step 2: Convert to fraction form
    139,168,989.68/192,041,771.45 = 76,441,845.92/x
  3. Step 3: Cross multiply
    139,168,989.68x = 192,041,771.45 × 76,441,845.92
  4. Step 4: Simplify right side
    139,168,989.68x = 14,680,027,502,042,338
  5. Step 5: Solve for x
    x = 14,680,027,502,042,338/139,168,989.68
  6. Step 6: Final answer
    x = 105,483,466.80

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.