Home / 304,519,009.22-420,225,359.66-172,357,168.20

Finding the Fourth Proportional to 304,519,009.22, 420,225,359.66 and 172,357,168.20

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Solution

The fourth proportional to 304,519,009.22, 420,225,359.66 and 172,357,168.20 is: 237,846,737.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,519,009.22 : 420,225,359.66 = 172,357,168.20 : x
  2. Step 2: Convert to fraction form
    304,519,009.22/420,225,359.66 = 172,357,168.20/x
  3. Step 3: Cross multiply
    304,519,009.22x = 420,225,359.66 × 172,357,168.20
  4. Step 4: Simplify right side
    304,519,009.22x = 72,428,852,996,608,656
  5. Step 5: Solve for x
    x = 72,428,852,996,608,656/304,519,009.22
  6. Step 6: Final answer
    x = 237,846,737.99

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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.