Home / 392,496,623.51-541,648,972.54-216,290,924.38

Finding the Fourth Proportional to 392,496,623.51, 541,648,972.54 and 216,290,924.38

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Solution

The fourth proportional to 392,496,623.51, 541,648,972.54 and 216,290,924.38 is: 298,483,477.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,496,623.51 : 541,648,972.54 = 216,290,924.38 : x
  2. Step 2: Convert to fraction form
    392,496,623.51/541,648,972.54 = 216,290,924.38/x
  3. Step 3: Cross multiply
    392,496,623.51x = 541,648,972.54 × 216,290,924.38
  4. Step 4: Simplify right side
    392,496,623.51x = 117,153,756,956,364,128
  5. Step 5: Solve for x
    x = 117,153,756,956,364,128/392,496,623.51
  6. Step 6: Final answer
    x = 298,483,477.15

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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.