Home / 100,533,089.48-138,736,219.86-56,481,945.80

Finding the Fourth Proportional to 100,533,089.48, 138,736,219.86 and 56,481,945.80

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Solution

The fourth proportional to 100,533,089.48, 138,736,219.86 and 56,481,945.80 is: 77,945,397.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,533,089.48 : 138,736,219.86 = 56,481,945.80 : x
  2. Step 2: Convert to fraction form
    100,533,089.48/138,736,219.86 = 56,481,945.80/x
  3. Step 3: Cross multiply
    100,533,089.48x = 138,736,219.86 × 56,481,945.80
  4. Step 4: Simplify right side
    100,533,089.48x = 7,836,091,650,629,404
  5. Step 5: Solve for x
    x = 7,836,091,650,629,404/100,533,089.48
  6. Step 6: Final answer
    x = 77,945,397.79

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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.