Home / 825,540,987.32-1,139,212,178.93-449,199,053

Finding the Fourth Proportional to 825,540,987.32, 1,139,212,178.93 and 449,199,053

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Solution

The fourth proportional to 825,540,987.32, 1,139,212,178.93 and 449,199,053 is: 619,875,984.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,540,987.32 : 1,139,212,178.93 = 449,199,053 : x
  2. Step 2: Convert to fraction form
    825,540,987.32/1,139,212,178.93 = 449,199,053/x
  3. Step 3: Cross multiply
    825,540,987.32x = 1,139,212,178.93 × 449,199,053
  4. Step 4: Simplify right side
    825,540,987.32x = 511,733,031,939,176,512
  5. Step 5: Solve for x
    x = 511,733,031,939,176,512/825,540,987.32
  6. Step 6: Final answer
    x = 619,875,984.11

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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.