Home / 315,945,617.31-473,939,220.69-82,782,038.61

Finding the Fourth Proportional to 315,945,617.31, 473,939,220.69 and 82,782,038.61

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Solution

The fourth proportional to 315,945,617.31, 473,939,220.69 and 82,782,038.61 is: 124,178,506.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,945,617.31 : 473,939,220.69 = 82,782,038.61 : x
  2. Step 2: Convert to fraction form
    315,945,617.31/473,939,220.69 = 82,782,038.61/x
  3. Step 3: Cross multiply
    315,945,617.31x = 473,939,220.69 × 82,782,038.61
  4. Step 4: Simplify right side
    315,945,617.31x = 39,233,654,865,952,888
  5. Step 5: Solve for x
    x = 39,233,654,865,952,888/315,945,617.31
  6. Step 6: Final answer
    x = 124,178,506.42

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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.