Home / 636,965,733,015.64-879,012,677,940.64-343,990,627,642.72

Finding the Fourth Proportional to 636,965,733,015.64, 879,012,677,940.64 and 343,990,627,642.72

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Solution

The fourth proportional to 636,965,733,015.64, 879,012,677,940.64 and 343,990,627,642.72 is: 474,707,047,990.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,965,733,015.64 : 879,012,677,940.64 = 343,990,627,642.72 : x
  2. Step 2: Convert to fraction form
    636,965,733,015.64/879,012,677,940.64 = 343,990,627,642.72/x
  3. Step 3: Cross multiply
    636,965,733,015.64x = 879,012,677,940.64 × 343,990,627,642.72
  4. Step 4: Simplify right side
    636,965,733,015.64x = 302,372,122,790,708,836,827,136
  5. Step 5: Solve for x
    x = 302,372,122,790,708,836,827,136/636,965,733,015.64
  6. Step 6: Final answer
    x = 474,707,047,990.11

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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.