Home / 12,787,539.40-19,180,434.30-4,151,513.80

Finding the Fourth Proportional to 12,787,539.40, 19,180,434.30 and 4,151,513.80

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Solution

The fourth proportional to 12,787,539.40, 19,180,434.30 and 4,151,513.80 is: 6,226,986.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787,539.40 : 19,180,434.30 = 4,151,513.80 : x
  2. Step 2: Convert to fraction form
    12,787,539.40/19,180,434.30 = 4,151,513.80/x
  3. Step 3: Cross multiply
    12,787,539.40x = 19,180,434.30 × 4,151,513.80
  4. Step 4: Simplify right side
    12,787,539.40x = 79,627,837,686,443.34
  5. Step 5: Solve for x
    x = 79,627,837,686,443.34/12,787,539.40
  6. Step 6: Final answer
    x = 6,226,986.69

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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.