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Finding the Fourth Proportional to 200,865,666.70, 301,223,850.45 and 79,672,041.10

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Solution

The fourth proportional to 200,865,666.70, 301,223,850.45 and 79,672,041.10 is: 119,478,452.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,865,666.70 : 301,223,850.45 = 79,672,041.10 : x
  2. Step 2: Convert to fraction form
    200,865,666.70/301,223,850.45 = 79,672,041.10/x
  3. Step 3: Cross multiply
    200,865,666.70x = 301,223,850.45 × 79,672,041.10
  4. Step 4: Simplify right side
    200,865,666.70x = 23,999,118,993,352,652
  5. Step 5: Solve for x
    x = 23,999,118,993,352,652/200,865,666.70
  6. Step 6: Final answer
    x = 119,478,452.38

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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.