Home / 213,036,351.60-319,554,527.40-76,704,020.40

Finding the Fourth Proportional to 213,036,351.60, 319,554,527.40 and 76,704,020.40

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Solution

The fourth proportional to 213,036,351.60, 319,554,527.40 and 76,704,020.40 is: 115,056,030.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,036,351.60 : 319,554,527.40 = 76,704,020.40 : x
  2. Step 2: Convert to fraction form
    213,036,351.60/319,554,527.40 = 76,704,020.40/x
  3. Step 3: Cross multiply
    213,036,351.60x = 319,554,527.40 × 76,704,020.40
  4. Step 4: Simplify right side
    213,036,351.60x = 24,511,116,988,601,960
  5. Step 5: Solve for x
    x = 24,511,116,988,601,960/213,036,351.60
  6. Step 6: Final answer
    x = 115,056,030.60

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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.