Home / 394,849,783.41-545,460,271.94-315,360,481.89

Finding the Fourth Proportional to 394,849,783.41, 545,460,271.94 and 315,360,481.89

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Solution

The fourth proportional to 394,849,783.41, 545,460,271.94 and 315,360,481.89 is: 435,650,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,849,783.41 : 545,460,271.94 = 315,360,481.89 : x
  2. Step 2: Convert to fraction form
    394,849,783.41/545,460,271.94 = 315,360,481.89/x
  3. Step 3: Cross multiply
    394,849,783.41x = 545,460,271.94 × 315,360,481.89
  4. Step 4: Simplify right side
    394,849,783.41x = 172,016,614,210,848,864
  5. Step 5: Solve for x
    x = 172,016,614,210,848,864/394,849,783.41
  6. Step 6: Final answer
    x = 435,650,775.15

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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.