Home / 130,574,161.53-180,192,334.68-71,835,566.54

Finding the Fourth Proportional to 130,574,161.53, 180,192,334.68 and 71,835,566.54

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Solution

The fourth proportional to 130,574,161.53, 180,192,334.68 and 71,835,566.54 is: 99,133,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,574,161.53 : 180,192,334.68 = 71,835,566.54 : x
  2. Step 2: Convert to fraction form
    130,574,161.53/180,192,334.68 = 71,835,566.54/x
  3. Step 3: Cross multiply
    130,574,161.53x = 180,192,334.68 × 71,835,566.54
  4. Step 4: Simplify right side
    130,574,161.53x = 12,944,218,447,002,128
  5. Step 5: Solve for x
    x = 12,944,218,447,002,128/130,574,161.53
  6. Step 6: Final answer
    x = 99,133,077.29

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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.