Home / 38,480,939.90-53,103,041.01-20,839,699.28

Finding the Fourth Proportional to 38,480,939.90, 53,103,041.01 and 20,839,699.28

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Solution

The fourth proportional to 38,480,939.90, 53,103,041.01 and 20,839,699.28 is: 28,758,429.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,480,939.90 : 53,103,041.01 = 20,839,699.28 : x
  2. Step 2: Convert to fraction form
    38,480,939.90/53,103,041.01 = 20,839,699.28/x
  3. Step 3: Cross multiply
    38,480,939.90x = 53,103,041.01 × 20,839,699.28
  4. Step 4: Simplify right side
    38,480,939.90x = 1,106,651,405,634,665
  5. Step 5: Solve for x
    x = 1,106,651,405,634,665/38,480,939.90
  6. Step 6: Final answer
    x = 28,758,429.72

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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.