Home / 130,734,128.80-196,101,193.20-120,880,381.60

Finding the Fourth Proportional to 130,734,128.80, 196,101,193.20 and 120,880,381.60

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Solution

The fourth proportional to 130,734,128.80, 196,101,193.20 and 120,880,381.60 is: 181,320,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,734,128.80 : 196,101,193.20 = 120,880,381.60 : x
  2. Step 2: Convert to fraction form
    130,734,128.80/196,101,193.20 = 120,880,381.60/x
  3. Step 3: Cross multiply
    130,734,128.80x = 196,101,193.20 × 120,880,381.60
  4. Step 4: Simplify right side
    130,734,128.80x = 23,704,787,066,231,324
  5. Step 5: Solve for x
    x = 23,704,787,066,231,324/130,734,128.80
  6. Step 6: Final answer
    x = 181,320,572.40

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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.