Home / 128,765,880,197.72-193,148,774,835.90-34,436,376,329.51

Finding the Fourth Proportional to 128,765,880,197.72, 193,148,774,835.90 and 34,436,376,329.51

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Solution

The fourth proportional to 128,765,880,197.72, 193,148,774,835.90 and 34,436,376,329.51 is: 51,654,552,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,765,880,197.72 : 193,148,774,835.90 = 34,436,376,329.51 : x
  2. Step 2: Convert to fraction form
    128,765,880,197.72/193,148,774,835.90 = 34,436,376,329.51/x
  3. Step 3: Cross multiply
    128,765,880,197.72x = 193,148,774,835.90 × 34,436,376,329.51
  4. Step 4: Simplify right side
    128,765,880,197.72x = 6,651,343,897,833,615,917,056
  5. Step 5: Solve for x
    x = 6,651,343,897,833,615,917,056/128,765,880,197.72
  6. Step 6: Final answer
    x = 51,654,552,336.54

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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.