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Finding the Fourth Proportional to 200,043,145.60, 280,665,065.60 and 200,043,145.60

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Solution

The fourth proportional to 200,043,145.60, 280,665,065.60 and 200,043,145.60 is: 280,665,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,043,145.60 : 280,665,065.60 = 200,043,145.60 : x
  2. Step 2: Convert to fraction form
    200,043,145.60/280,665,065.60 = 200,043,145.60/x
  3. Step 3: Cross multiply
    200,043,145.60x = 280,665,065.60 × 200,043,145.60
  4. Step 4: Simplify right side
    200,043,145.60x = 56,145,122,582,654,352
  5. Step 5: Solve for x
    x = 56,145,122,582,654,352/200,043,145.60
  6. Step 6: Final answer
    x = 280,665,065.60

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1.5x scale

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.