Home / 154,729,793.34-213,528,240.46-84,166,012.80

Finding the Fourth Proportional to 154,729,793.34, 213,528,240.46 and 84,166,012.80

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Solution

The fourth proportional to 154,729,793.34, 213,528,240.46 and 84,166,012.80 is: 116,149,709.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,729,793.34 : 213,528,240.46 = 84,166,012.80 : x
  2. Step 2: Convert to fraction form
    154,729,793.34/213,528,240.46 = 84,166,012.80/x
  3. Step 3: Cross multiply
    154,729,793.34x = 213,528,240.46 × 84,166,012.80
  4. Step 4: Simplify right side
    154,729,793.34x = 17,971,820,619,717,838
  5. Step 5: Solve for x
    x = 17,971,820,619,717,838/154,729,793.34
  6. Step 6: Final answer
    x = 116,149,709.97

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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.