Home / 19,927,820.40-29,896,979.40-7,146,992.40

Finding the Fourth Proportional to 19,927,820.40, 29,896,979.40 and 7,146,992.40

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Solution

The fourth proportional to 19,927,820.40, 29,896,979.40 and 7,146,992.40 is: 10,722,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,927,820.40 : 29,896,979.40 = 7,146,992.40 : x
  2. Step 2: Convert to fraction form
    19,927,820.40/29,896,979.40 = 7,146,992.40/x
  3. Step 3: Cross multiply
    19,927,820.40x = 29,896,979.40 × 7,146,992.40
  4. Step 4: Simplify right side
    19,927,820.40x = 213,673,484,554,756.56
  5. Step 5: Solve for x
    x = 213,673,484,554,756.56/19,927,820.40
  6. Step 6: Final answer
    x = 10,722,371.05

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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.