Home / 12,780,698.40-19,171,047.60-4,144,782.15

Finding the Fourth Proportional to 12,780,698.40, 19,171,047.60 and 4,144,782.15

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Solution

The fourth proportional to 12,780,698.40, 19,171,047.60 and 4,144,782.15 is: 6,217,173.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,780,698.40 : 19,171,047.60 = 4,144,782.15 : x
  2. Step 2: Convert to fraction form
    12,780,698.40/19,171,047.60 = 4,144,782.15/x
  3. Step 3: Cross multiply
    12,780,698.40x = 19,171,047.60 × 4,144,782.15
  4. Step 4: Simplify right side
    12,780,698.40x = 79,459,815,889,280.34
  5. Step 5: Solve for x
    x = 79,459,815,889,280.34/12,780,698.40
  6. Step 6: Final answer
    x = 6,217,173.23

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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.