Home / 38,465,907.45-53,083,038.20-20,824,995.92

Finding the Fourth Proportional to 38,465,907.45, 53,083,038.20 and 20,824,995.92

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Solution

The fourth proportional to 38,465,907.45, 53,083,038.20 and 20,824,995.92 is: 28,738,540.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,465,907.45 : 53,083,038.20 = 20,824,995.92 : x
  2. Step 2: Convert to fraction form
    38,465,907.45/53,083,038.20 = 20,824,995.92/x
  3. Step 3: Cross multiply
    38,465,907.45x = 53,083,038.20 × 20,824,995.92
  4. Step 4: Simplify right side
    38,465,907.45x = 1,105,454,053,566,663.88
  5. Step 5: Solve for x
    x = 1,105,454,053,566,663.88/38,465,907.45
  6. Step 6: Final answer
    x = 28,738,540.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.