Home / 419,962,461.20-629,943,691.80-386,706,064.40

Finding the Fourth Proportional to 419,962,461.20, 629,943,691.80 and 386,706,064.40

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Solution

The fourth proportional to 419,962,461.20, 629,943,691.80 and 386,706,064.40 is: 580,059,096.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,962,461.20 : 629,943,691.80 = 386,706,064.40 : x
  2. Step 2: Convert to fraction form
    419,962,461.20/629,943,691.80 = 386,706,064.40/x
  3. Step 3: Cross multiply
    419,962,461.20x = 629,943,691.80 × 386,706,064.40
  4. Step 4: Simplify right side
    419,962,461.20x = 243,603,045,849,584,512
  5. Step 5: Solve for x
    x = 243,603,045,849,584,512/419,962,461.20
  6. Step 6: Final answer
    x = 580,059,096.60

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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.