Home / 12,671,990.40-19,007,985.60-4,152,604.80

Finding the Fourth Proportional to 12,671,990.40, 19,007,985.60 and 4,152,604.80

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Solution

The fourth proportional to 12,671,990.40, 19,007,985.60 and 4,152,604.80 is: 6,228,907.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,671,990.40 : 19,007,985.60 = 4,152,604.80 : x
  2. Step 2: Convert to fraction form
    12,671,990.40/19,007,985.60 = 4,152,604.80/x
  3. Step 3: Cross multiply
    12,671,990.40x = 19,007,985.60 × 4,152,604.80
  4. Step 4: Simplify right side
    12,671,990.40x = 78,932,652,240,890.88
  5. Step 5: Solve for x
    x = 78,932,652,240,890.88/12,671,990.40
  6. Step 6: Final answer
    x = 6,228,907.20

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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.