Home / 30,581,757,498.48-42,204,946,444.16-18,539,275,873.56

Finding the Fourth Proportional to 30,581,757,498.48, 42,204,946,444.16 and 18,539,275,873.56

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Solution

The fourth proportional to 30,581,757,498.48, 42,204,946,444.16 and 18,539,275,873.56 is: 25,585,486,556.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,581,757,498.48 : 42,204,946,444.16 = 18,539,275,873.56 : x
  2. Step 2: Convert to fraction form
    30,581,757,498.48/42,204,946,444.16 = 18,539,275,873.56/x
  3. Step 3: Cross multiply
    30,581,757,498.48x = 42,204,946,444.16 × 18,539,275,873.56
  4. Step 4: Simplify right side
    30,581,757,498.48x = 782,449,145,357,107,462,144
  5. Step 5: Solve for x
    x = 782,449,145,357,107,462,144/30,581,757,498.48
  6. Step 6: Final answer
    x = 25,585,486,556.68

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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.