Home / 394,903,988.40-592,355,982.60-190,830,644.40

Finding the Fourth Proportional to 394,903,988.40, 592,355,982.60 and 190,830,644.40

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Solution

The fourth proportional to 394,903,988.40, 592,355,982.60 and 190,830,644.40 is: 286,245,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,903,988.40 : 592,355,982.60 = 190,830,644.40 : x
  2. Step 2: Convert to fraction form
    394,903,988.40/592,355,982.60 = 190,830,644.40/x
  3. Step 3: Cross multiply
    394,903,988.40x = 592,355,982.60 × 190,830,644.40
  4. Step 4: Simplify right side
    394,903,988.40x = 113,039,673,873,753,200
  5. Step 5: Solve for x
    x = 113,039,673,873,753,200/394,903,988.40
  6. Step 6: Final answer
    x = 286,245,966.60

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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.