Home / 30,151,972.80-45,227,959.20-15,779,446.20

Finding the Fourth Proportional to 30,151,972.80, 45,227,959.20 and 15,779,446.20

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Solution

The fourth proportional to 30,151,972.80, 45,227,959.20 and 15,779,446.20 is: 23,669,169.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,151,972.80 : 45,227,959.20 = 15,779,446.20 : x
  2. Step 2: Convert to fraction form
    30,151,972.80/45,227,959.20 = 15,779,446.20/x
  3. Step 3: Cross multiply
    30,151,972.80x = 45,227,959.20 × 15,779,446.20
  4. Step 4: Simplify right side
    30,151,972.80x = 713,672,148,932,195
  5. Step 5: Solve for x
    x = 713,672,148,932,195/30,151,972.80
  6. Step 6: Final answer
    x = 23,669,169.30

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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.