Home / 825,540,988.07-1,139,212,179.96-449,199,053.75

Finding the Fourth Proportional to 825,540,988.07, 1,139,212,179.96 and 449,199,053.75

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Solution

The fourth proportional to 825,540,988.07, 1,139,212,179.96 and 449,199,053.75 is: 619,875,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,540,988.07 : 1,139,212,179.96 = 449,199,053.75 : x
  2. Step 2: Convert to fraction form
    825,540,988.07/1,139,212,179.96 = 449,199,053.75/x
  3. Step 3: Cross multiply
    825,540,988.07x = 1,139,212,179.96 × 449,199,053.75
  4. Step 4: Simplify right side
    825,540,988.07x = 511,733,033,258,506,752
  5. Step 5: Solve for x
    x = 511,733,033,258,506,752/825,540,988.07
  6. Step 6: Final answer
    x = 619,875,985.15

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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.