Home / 38,988,220.45-53,801,698.48-21,343,740.43

Finding the Fourth Proportional to 38,988,220.45, 53,801,698.48 and 21,343,740.43

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Solution

The fourth proportional to 38,988,220.45, 53,801,698.48 and 21,343,740.43 is: 29,453,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,988,220.45 : 53,801,698.48 = 21,343,740.43 : x
  2. Step 2: Convert to fraction form
    38,988,220.45/53,801,698.48 = 21,343,740.43/x
  3. Step 3: Cross multiply
    38,988,220.45x = 53,801,698.48 × 21,343,740.43
  4. Step 4: Simplify right side
    38,988,220.45x = 1,148,329,487,050,245.50
  5. Step 5: Solve for x
    x = 1,148,329,487,050,245.50/38,988,220.45
  6. Step 6: Final answer
    x = 29,453,241.87

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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.