Home / 12,768,341.20-19,152,511.80-12,021,845.20

Finding the Fourth Proportional to 12,768,341.20, 19,152,511.80 and 12,021,845.20

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Solution

The fourth proportional to 12,768,341.20, 19,152,511.80 and 12,021,845.20 is: 18,032,767.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768,341.20 : 19,152,511.80 = 12,021,845.20 : x
  2. Step 2: Convert to fraction form
    12,768,341.20/19,152,511.80 = 12,021,845.20/x
  3. Step 3: Cross multiply
    12,768,341.20x = 19,152,511.80 × 12,021,845.20
  4. Step 4: Simplify right side
    12,768,341.20x = 230,248,532,050,773.34
  5. Step 5: Solve for x
    x = 230,248,532,050,773.34/12,768,341.20
  6. Step 6: Final answer
    x = 18,032,767.80

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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.