Home / 38,640,021.30-57,960,031.95-20,724,117.30

Finding the Fourth Proportional to 38,640,021.30, 57,960,031.95 and 20,724,117.30

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Solution

The fourth proportional to 38,640,021.30, 57,960,031.95 and 20,724,117.30 is: 31,086,175.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,640,021.30 : 57,960,031.95 = 20,724,117.30 : x
  2. Step 2: Convert to fraction form
    38,640,021.30/57,960,031.95 = 20,724,117.30/x
  3. Step 3: Cross multiply
    38,640,021.30x = 57,960,031.95 × 20,724,117.30
  4. Step 4: Simplify right side
    38,640,021.30x = 1,201,170,500,843,547.75
  5. Step 5: Solve for x
    x = 1,201,170,500,843,547.75/38,640,021.30
  6. Step 6: Final answer
    x = 31,086,175.95

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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.