Home / 304,357,521-420,014,428.74-165,128,901.96

Finding the Fourth Proportional to 304,357,521, 420,014,428.74 and 165,128,901.96

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Solution

The fourth proportional to 304,357,521, 420,014,428.74 and 165,128,901.96 is: 227,878,454.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,357,521 : 420,014,428.74 = 165,128,901.96 : x
  2. Step 2: Convert to fraction form
    304,357,521/420,014,428.74 = 165,128,901.96/x
  3. Step 3: Cross multiply
    304,357,521x = 420,014,428.74 × 165,128,901.96
  4. Step 4: Simplify right side
    304,357,521x = 69,356,521,425,192,872
  5. Step 5: Solve for x
    x = 69,356,521,425,192,872/304,357,521
  6. Step 6: Final answer
    x = 227,878,454.25

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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.