Home / 9,768,521.45-13,478,400.93-5,637,674.84

Finding the Fourth Proportional to 9,768,521.45, 13,478,400.93 and 5,637,674.84

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Solution

The fourth proportional to 9,768,521.45, 13,478,400.93 and 5,637,674.84 is: 7,778,745.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,768,521.45 : 13,478,400.93 = 5,637,674.84 : x
  2. Step 2: Convert to fraction form
    9,768,521.45/13,478,400.93 = 5,637,674.84/x
  3. Step 3: Cross multiply
    9,768,521.45x = 13,478,400.93 × 5,637,674.84
  4. Step 4: Simplify right side
    9,768,521.45x = 75,986,841,806,493.59
  5. Step 5: Solve for x
    x = 75,986,841,806,493.59/9,768,521.45
  6. Step 6: Final answer
    x = 7,778,745.45

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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.