Home / 15,276,483,926.28-21,081,175,750.18-8,409,824,745.86

Finding the Fourth Proportional to 15,276,483,926.28, 21,081,175,750.18 and 8,409,824,745.86

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Solution

The fourth proportional to 15,276,483,926.28, 21,081,175,750.18 and 8,409,824,745.86 is: 11,605,353,322.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,276,483,926.28 : 21,081,175,750.18 = 8,409,824,745.86 : x
  2. Step 2: Convert to fraction form
    15,276,483,926.28/21,081,175,750.18 = 8,409,824,745.86/x
  3. Step 3: Cross multiply
    15,276,483,926.28x = 21,081,175,750.18 × 8,409,824,745.86
  4. Step 4: Simplify right side
    15,276,483,926.28x = 177,288,993,495,748,640,768
  5. Step 5: Solve for x
    x = 177,288,993,495,748,640,768/15,276,483,926.28
  6. Step 6: Final answer
    x = 11,605,353,322.88

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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.