Home / 442,830,956.40-664,246,434.60-212,744,559.60

Finding the Fourth Proportional to 442,830,956.40, 664,246,434.60 and 212,744,559.60

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Solution

The fourth proportional to 442,830,956.40, 664,246,434.60 and 212,744,559.60 is: 319,116,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,830,956.40 : 664,246,434.60 = 212,744,559.60 : x
  2. Step 2: Convert to fraction form
    442,830,956.40/664,246,434.60 = 212,744,559.60/x
  3. Step 3: Cross multiply
    442,830,956.40x = 664,246,434.60 × 212,744,559.60
  4. Step 4: Simplify right side
    442,830,956.40x = 141,314,815,194,847,200
  5. Step 5: Solve for x
    x = 141,314,815,194,847,200/442,830,956.40
  6. Step 6: Final answer
    x = 319,116,839.40

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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.