Home / 393,490,714.88-543,065,063.28-228,478,283.84

Finding the Fourth Proportional to 393,490,714.88, 543,065,063.28 and 228,478,283.84

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Solution

The fourth proportional to 393,490,714.88, 543,065,063.28 and 228,478,283.84 is: 315,327,831.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,490,714.88 : 543,065,063.28 = 228,478,283.84 : x
  2. Step 2: Convert to fraction form
    393,490,714.88/543,065,063.28 = 228,478,283.84/x
  3. Step 3: Cross multiply
    393,490,714.88x = 543,065,063.28 × 228,478,283.84
  4. Step 4: Simplify right side
    393,490,714.88x = 124,078,573,671,675,392
  5. Step 5: Solve for x
    x = 124,078,573,671,675,392/393,490,714.88
  6. Step 6: Final answer
    x = 315,327,831.08

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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.