Home / 100,902,147,881.68-139,179,353,574.27-64,715,863,520.44

Finding the Fourth Proportional to 100,902,147,881.68, 139,179,353,574.27 and 64,715,863,520.44

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Solution

The fourth proportional to 100,902,147,881.68, 139,179,353,574.27 and 64,715,863,520.44 is: 89,265,810,885.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,902,147,881.68 : 139,179,353,574.27 = 64,715,863,520.44 : x
  2. Step 2: Convert to fraction form
    100,902,147,881.68/139,179,353,574.27 = 64,715,863,520.44/x
  3. Step 3: Cross multiply
    100,902,147,881.68x = 139,179,353,574.27 × 64,715,863,520.44
  4. Step 4: Simplify right side
    100,902,147,881.68x = 9,007,112,050,775,520,444,416
  5. Step 5: Solve for x
    x = 9,007,112,050,775,520,444,416/100,902,147,881.68
  6. Step 6: Final answer
    x = 89,265,810,885.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.