Home / 489,138,956.62-674,754,484.08-290,759,345.62

Finding the Fourth Proportional to 489,138,956.62, 674,754,484.08 and 290,759,345.62

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Solution

The fourth proportional to 489,138,956.62, 674,754,484.08 and 290,759,345.62 is: 401,094,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,138,956.62 : 674,754,484.08 = 290,759,345.62 : x
  2. Step 2: Convert to fraction form
    489,138,956.62/674,754,484.08 = 290,759,345.62/x
  3. Step 3: Cross multiply
    489,138,956.62x = 674,754,484.08 × 290,759,345.62
  4. Step 4: Simplify right side
    489,138,956.62x = 196,191,172,245,261,536
  5. Step 5: Solve for x
    x = 196,191,172,245,261,536/489,138,956.62
  6. Step 6: Final answer
    x = 401,094,964.10

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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.