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Finding the Fourth Proportional to 212,621,875.80, 298,476,841.80 and 212,621,875.80

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Solution

The fourth proportional to 212,621,875.80, 298,476,841.80 and 212,621,875.80 is: 298,476,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,621,875.80 : 298,476,841.80 = 212,621,875.80 : x
  2. Step 2: Convert to fraction form
    212,621,875.80/298,476,841.80 = 212,621,875.80/x
  3. Step 3: Cross multiply
    212,621,875.80x = 298,476,841.80 × 212,621,875.80
  4. Step 4: Simplify right side
    212,621,875.80x = 63,462,705,986,375,856
  5. Step 5: Solve for x
    x = 63,462,705,986,375,856/212,621,875.80
  6. Step 6: Final answer
    x = 298,476,841.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.