Home / 821,107,837.44-1,231,559,009.28-268,364,053.44

Finding the Fourth Proportional to 821,107,837.44, 1,231,559,009.28 and 268,364,053.44

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Solution

The fourth proportional to 821,107,837.44, 1,231,559,009.28 and 268,364,053.44 is: 402,512,499.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,107,837.44 : 1,231,559,009.28 = 268,364,053.44 : x
  2. Step 2: Convert to fraction form
    821,107,837.44/1,231,559,009.28 = 268,364,053.44/x
  3. Step 3: Cross multiply
    821,107,837.44x = 1,231,559,009.28 × 268,364,053.44
  4. Step 4: Simplify right side
    821,107,837.44x = 330,506,167,780,931,392
  5. Step 5: Solve for x
    x = 330,506,167,780,931,392/821,107,837.44
  6. Step 6: Final answer
    x = 402,512,499.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.