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Finding the Fourth Proportional to 8,748,019.80, 13,122,029.70 and 5,543,627.40

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Solution

The fourth proportional to 8,748,019.80, 13,122,029.70 and 5,543,627.40 is: 8,315,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748,019.80 : 13,122,029.70 = 5,543,627.40 : x
  2. Step 2: Convert to fraction form
    8,748,019.80/13,122,029.70 = 5,543,627.40/x
  3. Step 3: Cross multiply
    8,748,019.80x = 13,122,029.70 × 5,543,627.40
  4. Step 4: Simplify right side
    8,748,019.80x = 72,743,643,388,533.78
  5. Step 5: Solve for x
    x = 72,743,643,388,533.78/8,748,019.80
  6. Step 6: Final answer
    x = 8,315,441.10

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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.