Home / 673,040,466.80-1,009,655,178.60-212,930,658.80

Finding the Fourth Proportional to 673,040,466.80, 1,009,655,178.60 and 212,930,658.80

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Solution

The fourth proportional to 673,040,466.80, 1,009,655,178.60 and 212,930,658.80 is: 319,425,878.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,040,466.80 : 1,009,655,178.60 = 212,930,658.80 : x
  2. Step 2: Convert to fraction form
    673,040,466.80/1,009,655,178.60 = 212,930,658.80/x
  3. Step 3: Cross multiply
    673,040,466.80x = 1,009,655,178.60 × 212,930,658.80
  4. Step 4: Simplify right side
    673,040,466.80x = 214,986,542,340,129,664
  5. Step 5: Solve for x
    x = 214,986,542,340,129,664/673,040,466.80
  6. Step 6: Final answer
    x = 319,425,878.45

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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.