Home / 643,865,823.40-965,798,735.10-234,786,015.40

Finding the Fourth Proportional to 643,865,823.40, 965,798,735.10 and 234,786,015.40

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Solution

The fourth proportional to 643,865,823.40, 965,798,735.10 and 234,786,015.40 is: 352,179,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,865,823.40 : 965,798,735.10 = 234,786,015.40 : x
  2. Step 2: Convert to fraction form
    643,865,823.40/965,798,735.10 = 234,786,015.40/x
  3. Step 3: Cross multiply
    643,865,823.40x = 965,798,735.10 × 234,786,015.40
  4. Step 4: Simplify right side
    643,865,823.40x = 226,756,036,692,489,120
  5. Step 5: Solve for x
    x = 226,756,036,692,489,120/643,865,823.40
  6. Step 6: Final answer
    x = 352,179,023.10

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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.