Home / 392,496,623.01-541,648,971.84-216,290,923.88

Finding the Fourth Proportional to 392,496,623.01, 541,648,971.84 and 216,290,923.88

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Solution

The fourth proportional to 392,496,623.01, 541,648,971.84 and 216,290,923.88 is: 298,483,476.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,496,623.01 : 541,648,971.84 = 216,290,923.88 : x
  2. Step 2: Convert to fraction form
    392,496,623.01/541,648,971.84 = 216,290,923.88/x
  3. Step 3: Cross multiply
    392,496,623.01x = 541,648,971.84 × 216,290,923.88
  4. Step 4: Simplify right side
    392,496,623.01x = 117,153,756,536,028,544
  5. Step 5: Solve for x
    x = 117,153,756,536,028,544/392,496,623.01
  6. Step 6: Final answer
    x = 298,483,476.46

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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.