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Finding the Fourth Proportional to 18,922,771,806.30, 28,384,157,709.45 and 18,922,771,806.30

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Solution

The fourth proportional to 18,922,771,806.30, 28,384,157,709.45 and 18,922,771,806.30 is: 28,384,157,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922,771,806.30 : 28,384,157,709.45 = 18,922,771,806.30 : x
  2. Step 2: Convert to fraction form
    18,922,771,806.30/28,384,157,709.45 = 18,922,771,806.30/x
  3. Step 3: Cross multiply
    18,922,771,806.30x = 28,384,157,709.45 × 18,922,771,806.30
  4. Step 4: Simplify right side
    18,922,771,806.30x = 537,106,939,249,953,210,368
  5. Step 5: Solve for x
    x = 537,106,939,249,953,210,368/18,922,771,806.30
  6. Step 6: Final answer
    x = 28,384,157,709.45

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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.