Home / 9,768,520.45-13,478,399.55-5,637,673.84

Finding the Fourth Proportional to 9,768,520.45, 13,478,399.55 and 5,637,673.84

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Solution

The fourth proportional to 9,768,520.45, 13,478,399.55 and 5,637,673.84 is: 7,778,744.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,768,520.45 : 13,478,399.55 = 5,637,673.84 : x
  2. Step 2: Convert to fraction form
    9,768,520.45/13,478,399.55 = 5,637,673.84/x
  3. Step 3: Cross multiply
    9,768,520.45x = 13,478,399.55 × 5,637,673.84
  4. Step 4: Simplify right side
    9,768,520.45x = 75,986,820,548,102.78
  5. Step 5: Solve for x
    x = 75,986,820,548,102.78/9,768,520.45
  6. Step 6: Final answer
    x = 7,778,744.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.