Home / 251,615,431,378.68-377,476,153,890.03-81,621,746,867.58

Finding the Fourth Proportional to 251,615,431,378.68, 377,476,153,890.03 and 81,621,746,867.58

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Solution

The fourth proportional to 251,615,431,378.68, 377,476,153,890.03 and 81,621,746,867.58 is: 122,449,815,230.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,615,431,378.68 : 377,476,153,890.03 = 81,621,746,867.58 : x
  2. Step 2: Convert to fraction form
    251,615,431,378.68/377,476,153,890.03 = 81,621,746,867.58/x
  3. Step 3: Cross multiply
    251,615,431,378.68x = 377,476,153,890.03 × 81,621,746,867.58
  4. Step 4: Simplify right side
    251,615,431,378.68x = 30,810,263,081,359,706,685,440
  5. Step 5: Solve for x
    x = 30,810,263,081,359,706,685,440/251,615,431,378.68
  6. Step 6: Final answer
    x = 122,449,815,230.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.