Home / 139,519,352.66-192,535,178.72-76,794,109.54

Finding the Fourth Proportional to 139,519,352.66, 192,535,178.72 and 76,794,109.54

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Solution

The fourth proportional to 139,519,352.66, 192,535,178.72 and 76,794,109.54 is: 105,975,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519,352.66 : 192,535,178.72 = 76,794,109.54 : x
  2. Step 2: Convert to fraction form
    139,519,352.66/192,535,178.72 = 76,794,109.54/x
  3. Step 3: Cross multiply
    139,519,352.66x = 192,535,178.72 × 76,794,109.54
  4. Step 4: Simplify right side
    139,519,352.66x = 14,785,567,604,927,158
  5. Step 5: Solve for x
    x = 14,785,567,604,927,158/139,519,352.66
  6. Step 6: Final answer
    x = 105,975,030.15

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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.