Home / 20,210,661.40-30,315,992.10-9,448,981.15

Finding the Fourth Proportional to 20,210,661.40, 30,315,992.10 and 9,448,981.15

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Solution

The fourth proportional to 20,210,661.40, 30,315,992.10 and 9,448,981.15 is: 14,173,471.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,210,661.40 : 30,315,992.10 = 9,448,981.15 : x
  2. Step 2: Convert to fraction form
    20,210,661.40/30,315,992.10 = 9,448,981.15/x
  3. Step 3: Cross multiply
    20,210,661.40x = 30,315,992.10 × 9,448,981.15
  4. Step 4: Simplify right side
    20,210,661.40x = 286,455,237,896,448.94
  5. Step 5: Solve for x
    x = 286,455,237,896,448.94/20,210,661.40
  6. Step 6: Final answer
    x = 14,173,471.73

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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.