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Finding the Fourth Proportional to 299,376,429.60, 449,064,644.40 and 170,381,920.80

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Solution

The fourth proportional to 299,376,429.60, 449,064,644.40 and 170,381,920.80 is: 255,572,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,376,429.60 : 449,064,644.40 = 170,381,920.80 : x
  2. Step 2: Convert to fraction form
    299,376,429.60/449,064,644.40 = 170,381,920.80/x
  3. Step 3: Cross multiply
    299,376,429.60x = 449,064,644.40 × 170,381,920.80
  4. Step 4: Simplify right side
    299,376,429.60x = 76,512,496,676,240,960
  5. Step 5: Solve for x
    x = 76,512,496,676,240,960/299,376,429.60
  6. Step 6: Final answer
    x = 255,572,881.20

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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.