Home / 843,079,939.03-1,163,572,072.75-485,779,310.22

Finding the Fourth Proportional to 843,079,939.03, 1,163,572,072.75 and 485,779,310.22

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Solution

The fourth proportional to 843,079,939.03, 1,163,572,072.75 and 485,779,310.22 is: 670,445,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,079,939.03 : 1,163,572,072.75 = 485,779,310.22 : x
  2. Step 2: Convert to fraction form
    843,079,939.03/1,163,572,072.75 = 485,779,310.22/x
  3. Step 3: Cross multiply
    843,079,939.03x = 1,163,572,072.75 × 485,779,310.22
  4. Step 4: Simplify right side
    843,079,939.03x = 565,239,238,891,750,720
  5. Step 5: Solve for x
    x = 565,239,238,891,750,720/843,079,939.03
  6. Step 6: Final answer
    x = 670,445,603.94

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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.