Home / 392,496,625.80-541,648,975.73-216,290,926.67

Finding the Fourth Proportional to 392,496,625.80, 541,648,975.73 and 216,290,926.67

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Solution

The fourth proportional to 392,496,625.80, 541,648,975.73 and 216,290,926.67 is: 298,483,480.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,496,625.80 : 541,648,975.73 = 216,290,926.67 : x
  2. Step 2: Convert to fraction form
    392,496,625.80/541,648,975.73 = 216,290,926.67/x
  3. Step 3: Cross multiply
    392,496,625.80x = 541,648,975.73 × 216,290,926.67
  4. Step 4: Simplify right side
    392,496,625.80x = 117,153,758,886,708,336
  5. Step 5: Solve for x
    x = 117,153,758,886,708,336/392,496,625.80
  6. Step 6: Final answer
    x = 298,483,480.33

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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.