Home / 128,765,880,243.69-193,148,774,904.84-34,436,376,375.45

Finding the Fourth Proportional to 128,765,880,243.69, 193,148,774,904.84 and 34,436,376,375.45

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Solution

The fourth proportional to 128,765,880,243.69, 193,148,774,904.84 and 34,436,376,375.45 is: 51,654,552,405.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,765,880,243.69 : 193,148,774,904.84 = 34,436,376,375.45 : x
  2. Step 2: Convert to fraction form
    128,765,880,243.69/193,148,774,904.84 = 34,436,376,375.45/x
  3. Step 3: Cross multiply
    128,765,880,243.69x = 193,148,774,904.84 × 34,436,376,375.45
  4. Step 4: Simplify right side
    128,765,880,243.69x = 6,651,343,909,080,140,873,728
  5. Step 5: Solve for x
    x = 6,651,343,909,080,140,873,728/128,765,880,243.69
  6. Step 6: Final answer
    x = 51,654,552,405.44

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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.