Home / 159,036,140.80-238,554,211.20-128,803,052.80

Finding the Fourth Proportional to 159,036,140.80, 238,554,211.20 and 128,803,052.80

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Solution

The fourth proportional to 159,036,140.80, 238,554,211.20 and 128,803,052.80 is: 193,204,579.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,036,140.80 : 238,554,211.20 = 128,803,052.80 : x
  2. Step 2: Convert to fraction form
    159,036,140.80/238,554,211.20 = 128,803,052.80/x
  3. Step 3: Cross multiply
    159,036,140.80x = 238,554,211.20 × 128,803,052.80
  4. Step 4: Simplify right side
    159,036,140.80x = 30,726,510,660,855,948
  5. Step 5: Solve for x
    x = 30,726,510,660,855,948/159,036,140.80
  6. Step 6: Final answer
    x = 193,204,579.20

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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.