Home / 30,238,044.16-45,375,955.20-12,287,142.40

Finding the Fourth Proportional to 30,238,044.16, 45,375,955.20 and 12,287,142.40

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Solution

The fourth proportional to 30,238,044.16, 45,375,955.20 and 12,287,142.40 is: 18,438,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,238,044.16 : 45,375,955.20 = 12,287,142.40 : x
  2. Step 2: Convert to fraction form
    30,238,044.16/45,375,955.20 = 12,287,142.40/x
  3. Step 3: Cross multiply
    30,238,044.16x = 45,375,955.20 × 12,287,142.40
  4. Step 4: Simplify right side
    30,238,044.16x = 557,540,823,078,420.56
  5. Step 5: Solve for x
    x = 557,540,823,078,420.56/30,238,044.16
  6. Step 6: Final answer
    x = 18,438,389.07

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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.