Home / 442,868,729.60-664,303,094.40-440,317,812.80

Finding the Fourth Proportional to 442,868,729.60, 664,303,094.40 and 440,317,812.80

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Solution

The fourth proportional to 442,868,729.60, 664,303,094.40 and 440,317,812.80 is: 660,476,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,868,729.60 : 664,303,094.40 = 440,317,812.80 : x
  2. Step 2: Convert to fraction form
    442,868,729.60/664,303,094.40 = 440,317,812.80/x
  3. Step 3: Cross multiply
    442,868,729.60x = 664,303,094.40 × 440,317,812.80
  4. Step 4: Simplify right side
    442,868,729.60x = 292,504,485,562,479,936
  5. Step 5: Solve for x
    x = 292,504,485,562,479,936/442,868,729.60
  6. Step 6: Final answer
    x = 660,476,719.20

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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.