Home / 448,404,458.40-672,606,687.60-419,706,644.40

Finding the Fourth Proportional to 448,404,458.40, 672,606,687.60 and 419,706,644.40

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Solution

The fourth proportional to 448,404,458.40, 672,606,687.60 and 419,706,644.40 is: 629,559,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,404,458.40 : 672,606,687.60 = 419,706,644.40 : x
  2. Step 2: Convert to fraction form
    448,404,458.40/672,606,687.60 = 419,706,644.40/x
  3. Step 3: Cross multiply
    448,404,458.40x = 672,606,687.60 × 419,706,644.40
  4. Step 4: Simplify right side
    448,404,458.40x = 282,297,495,853,595,072
  5. Step 5: Solve for x
    x = 282,297,495,853,595,072/448,404,458.40
  6. Step 6: Final answer
    x = 629,559,966.60

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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.