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Finding the Fourth Proportional to 265,733,875.80, 398,600,813.70 and 200,260,344.60

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Solution

The fourth proportional to 265,733,875.80, 398,600,813.70 and 200,260,344.60 is: 300,390,516.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,733,875.80 : 398,600,813.70 = 200,260,344.60 : x
  2. Step 2: Convert to fraction form
    265,733,875.80/398,600,813.70 = 200,260,344.60/x
  3. Step 3: Cross multiply
    265,733,875.80x = 398,600,813.70 × 200,260,344.60
  4. Step 4: Simplify right side
    265,733,875.80x = 79,823,936,309,402,400
  5. Step 5: Solve for x
    x = 79,823,936,309,402,400/265,733,875.80
  6. Step 6: Final answer
    x = 300,390,516.90

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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.