Home / 643,561,208.40-965,341,812.60-234,630,699.60

Finding the Fourth Proportional to 643,561,208.40, 965,341,812.60 and 234,630,699.60

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Solution

The fourth proportional to 643,561,208.40, 965,341,812.60 and 234,630,699.60 is: 351,946,049.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,561,208.40 : 965,341,812.60 = 234,630,699.60 : x
  2. Step 2: Convert to fraction form
    643,561,208.40/965,341,812.60 = 234,630,699.60/x
  3. Step 3: Cross multiply
    643,561,208.40x = 965,341,812.60 × 234,630,699.60
  4. Step 4: Simplify right side
    643,561,208.40x = 226,498,824,843,470,080
  5. Step 5: Solve for x
    x = 226,498,824,843,470,080/643,561,208.40
  6. Step 6: Final answer
    x = 351,946,049.40

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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.