Home / 139,619,339.83-209,283,527.77-78,118,330.11

Finding the Fourth Proportional to 139,619,339.83, 209,283,527.77 and 78,118,330.11

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Solution

The fourth proportional to 139,619,339.83, 209,283,527.77 and 78,118,330.11 is: 117,096,096.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,619,339.83 : 209,283,527.77 = 78,118,330.11 : x
  2. Step 2: Convert to fraction form
    139,619,339.83/209,283,527.77 = 78,118,330.11/x
  3. Step 3: Cross multiply
    139,619,339.83x = 209,283,527.77 × 78,118,330.11
  4. Step 4: Simplify right side
    139,619,339.83x = 16,348,879,707,485,202
  5. Step 5: Solve for x
    x = 16,348,879,707,485,202/139,619,339.83
  6. Step 6: Final answer
    x = 117,096,096.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.