Home / 47,651,521.50-71,507,513.88-20,358,019.80

Finding the Fourth Proportional to 47,651,521.50, 71,507,513.88 and 20,358,019.80

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Solution

The fourth proportional to 47,651,521.50, 71,507,513.88 and 20,358,019.80 is: 30,549,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,651,521.50 : 71,507,513.88 = 20,358,019.80 : x
  2. Step 2: Convert to fraction form
    47,651,521.50/71,507,513.88 = 20,358,019.80/x
  3. Step 3: Cross multiply
    47,651,521.50x = 71,507,513.88 × 20,358,019.80
  4. Step 4: Simplify right side
    47,651,521.50x = 1,455,751,383,417,814.75
  5. Step 5: Solve for x
    x = 1,455,751,383,417,814.75/47,651,521.50
  6. Step 6: Final answer
    x = 30,549,945.47

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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.