Home / 12,783,038.80-19,158,228.60-5,201,438.80

Finding the Fourth Proportional to 12,783,038.80, 19,158,228.60 and 5,201,438.80

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Solution

The fourth proportional to 12,783,038.80, 19,158,228.60 and 5,201,438.80 is: 7,795,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783,038.80 : 19,158,228.60 = 5,201,438.80 : x
  2. Step 2: Convert to fraction form
    12,783,038.80/19,158,228.60 = 5,201,438.80/x
  3. Step 3: Cross multiply
    12,783,038.80x = 19,158,228.60 × 5,201,438.80
  4. Step 4: Simplify right side
    12,783,038.80x = 99,650,353,579,309.69
  5. Step 5: Solve for x
    x = 99,650,353,579,309.69/12,783,038.80
  6. Step 6: Final answer
    x = 7,795,513.66

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1.5x scale

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.