Home / 459,840,020.20-689,760,030.30-204,538,388.20

Finding the Fourth Proportional to 459,840,020.20, 689,760,030.30 and 204,538,388.20

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Solution

The fourth proportional to 459,840,020.20, 689,760,030.30 and 204,538,388.20 is: 306,807,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,840,020.20 : 689,760,030.30 = 204,538,388.20 : x
  2. Step 2: Convert to fraction form
    459,840,020.20/689,760,030.30 = 204,538,388.20/x
  3. Step 3: Cross multiply
    459,840,020.20x = 689,760,030.30 × 204,538,388.20
  4. Step 4: Simplify right side
    459,840,020.20x = 141,082,404,842,345,152
  5. Step 5: Solve for x
    x = 141,082,404,842,345,152/459,840,020.20
  6. Step 6: Final answer
    x = 306,807,582.30

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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.