Home / 558,626,856.04-770,928,976.74-311,108,209.96

Finding the Fourth Proportional to 558,626,856.04, 770,928,976.74 and 311,108,209.96

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Solution

The fourth proportional to 558,626,856.04, 770,928,976.74 and 311,108,209.96 is: 429,342,648.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,626,856.04 : 770,928,976.74 = 311,108,209.96 : x
  2. Step 2: Convert to fraction form
    558,626,856.04/770,928,976.74 = 311,108,209.96/x
  3. Step 3: Cross multiply
    558,626,856.04x = 770,928,976.74 × 311,108,209.96
  4. Step 4: Simplify right side
    558,626,856.04x = 239,842,333,959,875,872
  5. Step 5: Solve for x
    x = 239,842,333,959,875,872/558,626,856.04
  6. Step 6: Final answer
    x = 429,342,648.62

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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.