Home / 20,875,743,157.76-28,808,530,247.92-11,488,369,333.76

Finding the Fourth Proportional to 20,875,743,157.76, 28,808,530,247.92 and 11,488,369,333.76

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Solution

The fourth proportional to 20,875,743,157.76, 28,808,530,247.92 and 11,488,369,333.76 is: 15,853,952,261.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875,743,157.76 : 28,808,530,247.92 = 11,488,369,333.76 : x
  2. Step 2: Convert to fraction form
    20,875,743,157.76/28,808,530,247.92 = 11,488,369,333.76/x
  3. Step 3: Cross multiply
    20,875,743,157.76x = 28,808,530,247.92 × 11,488,369,333.76
  4. Step 4: Simplify right side
    20,875,743,157.76x = 330,963,035,450,901,463,040
  5. Step 5: Solve for x
    x = 330,963,035,450,901,463,040/20,875,743,157.76
  6. Step 6: Final answer
    x = 15,853,952,261.71

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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.