Home / 30,616,813.68-45,930,871.08-12,667,317.36

Finding the Fourth Proportional to 30,616,813.68, 45,930,871.08 and 12,667,317.36

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Solution

The fourth proportional to 30,616,813.68, 45,930,871.08 and 12,667,317.36 is: 19,003,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,616,813.68 : 45,930,871.08 = 12,667,317.36 : x
  2. Step 2: Convert to fraction form
    30,616,813.68/45,930,871.08 = 12,667,317.36/x
  3. Step 3: Cross multiply
    30,616,813.68x = 45,930,871.08 × 12,667,317.36
  4. Step 4: Simplify right side
    30,616,813.68x = 581,820,920,591,605.88
  5. Step 5: Solve for x
    x = 581,820,920,591,605.88/30,616,813.68
  6. Step 6: Final answer
    x = 19,003,313.89

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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.