Home / 442,830,954.40-664,246,431.60-212,744,557.60

Finding the Fourth Proportional to 442,830,954.40, 664,246,431.60 and 212,744,557.60

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Solution

The fourth proportional to 442,830,954.40, 664,246,431.60 and 212,744,557.60 is: 319,116,836.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,830,954.40 : 664,246,431.60 = 212,744,557.60 : x
  2. Step 2: Convert to fraction form
    442,830,954.40/664,246,431.60 = 212,744,557.60/x
  3. Step 3: Cross multiply
    442,830,954.40x = 664,246,431.60 × 212,744,557.60
  4. Step 4: Simplify right side
    442,830,954.40x = 141,314,813,228,120,656
  5. Step 5: Solve for x
    x = 141,314,813,228,120,656/442,830,954.40
  6. Step 6: Final answer
    x = 319,116,836.40

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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.