Home / 718,575,520.78-1,077,399,858.03-281,920,335.22

Finding the Fourth Proportional to 718,575,520.78, 1,077,399,858.03 and 281,920,335.22

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Solution

The fourth proportional to 718,575,520.78, 1,077,399,858.03 and 281,920,335.22 is: 422,698,687.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,575,520.78 : 1,077,399,858.03 = 281,920,335.22 : x
  2. Step 2: Convert to fraction form
    718,575,520.78/1,077,399,858.03 = 281,920,335.22/x
  3. Step 3: Cross multiply
    718,575,520.78x = 1,077,399,858.03 × 281,920,335.22
  4. Step 4: Simplify right side
    718,575,520.78x = 303,740,929,141,798,016
  5. Step 5: Solve for x
    x = 303,740,929,141,798,016/718,575,520.78
  6. Step 6: Final answer
    x = 422,698,687.00

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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.