Home / 489,191,936.65-732,862,050.30-289,172,392.97

Finding the Fourth Proportional to 489,191,936.65, 732,862,050.30 and 289,172,392.97

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Solution

The fourth proportional to 489,191,936.65, 732,862,050.30 and 289,172,392.97 is: 433,211,295.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,191,936.65 : 732,862,050.30 = 289,172,392.97 : x
  2. Step 2: Convert to fraction form
    489,191,936.65/732,862,050.30 = 289,172,392.97/x
  3. Step 3: Cross multiply
    489,191,936.65x = 732,862,050.30 × 289,172,392.97
  4. Step 4: Simplify right side
    489,191,936.65x = 211,923,472,798,487,168
  5. Step 5: Solve for x
    x = 211,923,472,798,487,168/489,191,936.65
  6. Step 6: Final answer
    x = 433,211,295.86

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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.