Home / 38,478,199.80-53,099,967.48-20,837,133.12

Finding the Fourth Proportional to 38,478,199.80, 53,099,967.48 and 20,837,133.12

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Solution

The fourth proportional to 38,478,199.80, 53,099,967.48 and 20,837,133.12 is: 28,755,271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478,199.80 : 53,099,967.48 = 20,837,133.12 : x
  2. Step 2: Convert to fraction form
    38,478,199.80/53,099,967.48 = 20,837,133.12/x
  3. Step 3: Cross multiply
    38,478,199.80x = 53,099,967.48 × 20,837,133.12
  4. Step 4: Simplify right side
    38,478,199.80x = 1,106,451,091,048,430.88
  5. Step 5: Solve for x
    x = 1,106,451,091,048,430.88/38,478,199.80
  6. Step 6: Final answer
    x = 28,755,271.73

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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.