Home / 147,981,190.80-221,971,786.20-45,745,064.40

Finding the Fourth Proportional to 147,981,190.80, 221,971,786.20 and 45,745,064.40

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Solution

The fourth proportional to 147,981,190.80, 221,971,786.20 and 45,745,064.40 is: 68,617,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,981,190.80 : 221,971,786.20 = 45,745,064.40 : x
  2. Step 2: Convert to fraction form
    147,981,190.80/221,971,786.20 = 45,745,064.40/x
  3. Step 3: Cross multiply
    147,981,190.80x = 221,971,786.20 × 45,745,064.40
  4. Step 4: Simplify right side
    147,981,190.80x = 10,154,113,654,702,030
  5. Step 5: Solve for x
    x = 10,154,113,654,702,030/147,981,190.80
  6. Step 6: Final answer
    x = 68,617,596.60

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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.