Home / 12,912,212.80-19,360,024.80-5,342,190.40

Finding the Fourth Proportional to 12,912,212.80, 19,360,024.80 and 5,342,190.40

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Solution

The fourth proportional to 12,912,212.80, 19,360,024.80 and 5,342,190.40 is: 8,009,853.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,212.80 : 19,360,024.80 = 5,342,190.40 : x
  2. Step 2: Convert to fraction form
    12,912,212.80/19,360,024.80 = 5,342,190.40/x
  3. Step 3: Cross multiply
    12,912,212.80x = 19,360,024.80 × 5,342,190.40
  4. Step 4: Simplify right side
    12,912,212.80x = 103,424,938,630,321.94
  5. Step 5: Solve for x
    x = 103,424,938,630,321.94/12,912,212.80
  6. Step 6: Final answer
    x = 8,009,853.94

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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.