Home / 100,048,328.55-138,071,008.49-55,394,300.39

Finding the Fourth Proportional to 100,048,328.55, 138,071,008.49 and 55,394,300.39

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Solution

The fourth proportional to 100,048,328.55, 138,071,008.49 and 55,394,300.39 is: 76,446,523.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,048,328.55 : 138,071,008.49 = 55,394,300.39 : x
  2. Step 2: Convert to fraction form
    100,048,328.55/138,071,008.49 = 55,394,300.39/x
  3. Step 3: Cross multiply
    100,048,328.55x = 138,071,008.49 × 55,394,300.39
  4. Step 4: Simplify right side
    100,048,328.55x = 7,648,346,918,477,974
  5. Step 5: Solve for x
    x = 7,648,346,918,477,974/100,048,328.55
  6. Step 6: Final answer
    x = 76,446,523.69

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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.