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Finding the Fourth Proportional to 299,019,870.60, 448,529,805.90 and 266,771,243.40

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Solution

The fourth proportional to 299,019,870.60, 448,529,805.90 and 266,771,243.40 is: 400,156,865.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,019,870.60 : 448,529,805.90 = 266,771,243.40 : x
  2. Step 2: Convert to fraction form
    299,019,870.60/448,529,805.90 = 266,771,243.40/x
  3. Step 3: Cross multiply
    299,019,870.60x = 448,529,805.90 × 266,771,243.40
  4. Step 4: Simplify right side
    299,019,870.60x = 119,654,854,021,903,648
  5. Step 5: Solve for x
    x = 119,654,854,021,903,648/299,019,870.60
  6. Step 6: Final answer
    x = 400,156,865.10

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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.