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Finding the Fourth Proportional to 2,878,168,986.45, 4,317,253,479.68 and 2,878,168,986.45

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Solution

The fourth proportional to 2,878,168,986.45, 4,317,253,479.68 and 2,878,168,986.45 is: 4,317,253,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878,168,986.45 : 4,317,253,479.68 = 2,878,168,986.45 : x
  2. Step 2: Convert to fraction form
    2,878,168,986.45/4,317,253,479.68 = 2,878,168,986.45/x
  3. Step 3: Cross multiply
    2,878,168,986.45x = 4,317,253,479.68 × 2,878,168,986.45
  4. Step 4: Simplify right side
    2,878,168,986.45x = 12,425,785,071,843,930,112
  5. Step 5: Solve for x
    x = 12,425,785,071,843,930,112/2,878,168,986.45
  6. Step 6: Final answer
    x = 4,317,253,479.68

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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.