Home / 139,616,739.75-209,465,066.13-47,520,770.07

Finding the Fourth Proportional to 139,616,739.75, 209,465,066.13 and 47,520,770.07

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Solution

The fourth proportional to 139,616,739.75, 209,465,066.13 and 47,520,770.07 is: 71,294,754.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,616,739.75 : 209,465,066.13 = 47,520,770.07 : x
  2. Step 2: Convert to fraction form
    139,616,739.75/209,465,066.13 = 47,520,770.07/x
  3. Step 3: Cross multiply
    139,616,739.75x = 209,465,066.13 × 47,520,770.07
  4. Step 4: Simplify right side
    139,616,739.75x = 9,953,941,245,261,074
  5. Step 5: Solve for x
    x = 9,953,941,245,261,074/139,616,739.75
  6. Step 6: Final answer
    x = 71,294,754.93

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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.