Home / 15,053,614.29-20,774,133.32-8,178,145.56

Finding the Fourth Proportional to 15,053,614.29, 20,774,133.32 and 8,178,145.56

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Solution

The fourth proportional to 15,053,614.29, 20,774,133.32 and 8,178,145.56 is: 11,285,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053,614.29 : 20,774,133.32 = 8,178,145.56 : x
  2. Step 2: Convert to fraction form
    15,053,614.29/20,774,133.32 = 8,178,145.56/x
  3. Step 3: Cross multiply
    15,053,614.29x = 20,774,133.32 × 8,178,145.56
  4. Step 4: Simplify right side
    15,053,614.29x = 169,893,886,132,915.34
  5. Step 5: Solve for x
    x = 169,893,886,132,915.34/15,053,614.29
  6. Step 6: Final answer
    x = 11,285,919.97

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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.