Home / 38,738,643.59-53,461,744.01-21,334,984.20

Finding the Fourth Proportional to 38,738,643.59, 53,461,744.01 and 21,334,984.20

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Solution

The fourth proportional to 38,738,643.59, 53,461,744.01 and 21,334,984.20 is: 29,443,608.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,738,643.59 : 53,461,744.01 = 21,334,984.20 : x
  2. Step 2: Convert to fraction form
    38,738,643.59/53,461,744.01 = 21,334,984.20/x
  3. Step 3: Cross multiply
    38,738,643.59x = 53,461,744.01 × 21,334,984.20
  4. Step 4: Simplify right side
    38,738,643.59x = 1,140,605,463,651,119.75
  5. Step 5: Solve for x
    x = 1,140,605,463,651,119.75/38,738,643.59
  6. Step 6: Final answer
    x = 29,443,608.71

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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.