Home / 72,628,509.36-100,224,327.12-39,588,031.52

Finding the Fourth Proportional to 72,628,509.36, 100,224,327.12 and 39,588,031.52

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Solution

The fourth proportional to 72,628,509.36, 100,224,327.12 and 39,588,031.52 is: 54,629,839.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,628,509.36 : 100,224,327.12 = 39,588,031.52 : x
  2. Step 2: Convert to fraction form
    72,628,509.36/100,224,327.12 = 39,588,031.52/x
  3. Step 3: Cross multiply
    72,628,509.36x = 100,224,327.12 × 39,588,031.52
  4. Step 4: Simplify right side
    72,628,509.36x = 3,967,683,821,097,351.50
  5. Step 5: Solve for x
    x = 3,967,683,821,097,351.50/72,628,509.36
  6. Step 6: Final answer
    x = 54,629,839.66

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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.