Home / 139,414,216.80-209,121,325.20-124,347,864.45

Finding the Fourth Proportional to 139,414,216.80, 209,121,325.20 and 124,347,864.45

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Solution

The fourth proportional to 139,414,216.80, 209,121,325.20 and 124,347,864.45 is: 186,521,796.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,414,216.80 : 209,121,325.20 = 124,347,864.45 : x
  2. Step 2: Convert to fraction form
    139,414,216.80/209,121,325.20 = 124,347,864.45/x
  3. Step 3: Cross multiply
    139,414,216.80x = 209,121,325.20 × 124,347,864.45
  4. Step 4: Simplify right side
    139,414,216.80x = 26,003,790,199,573,968
  5. Step 5: Solve for x
    x = 26,003,790,199,573,968/139,414,216.80
  6. Step 6: Final answer
    x = 186,521,796.68

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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.