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Finding the Fourth Proportional to 299,221,805.20, 448,454,794.20 and 145,536,941.20

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Solution

The fourth proportional to 299,221,805.20, 448,454,794.20 and 145,536,941.20 is: 218,121,600.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,221,805.20 : 448,454,794.20 = 145,536,941.20 : x
  2. Step 2: Convert to fraction form
    299,221,805.20/448,454,794.20 = 145,536,941.20/x
  3. Step 3: Cross multiply
    299,221,805.20x = 448,454,794.20 × 145,536,941.20
  4. Step 4: Simplify right side
    299,221,805.20x = 65,266,739,014,343,496
  5. Step 5: Solve for x
    x = 65,266,739,014,343,496/299,221,805.20
  6. Step 6: Final answer
    x = 218,121,600.37

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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.