Home / 128,159,090.46-176,860,393.92-69,421,754.88

Finding the Fourth Proportional to 128,159,090.46, 176,860,393.92 and 69,421,754.88

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Solution

The fourth proportional to 128,159,090.46, 176,860,393.92 and 69,421,754.88 is: 95,802,481.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,159,090.46 : 176,860,393.92 = 69,421,754.88 : x
  2. Step 2: Convert to fraction form
    128,159,090.46/176,860,393.92 = 69,421,754.88/x
  3. Step 3: Cross multiply
    128,159,090.46x = 176,860,393.92 × 69,421,754.88
  4. Step 4: Simplify right side
    128,159,090.46x = 12,277,958,914,694,480
  5. Step 5: Solve for x
    x = 12,277,958,914,694,480/128,159,090.46
  6. Step 6: Final answer
    x = 95,802,481.67

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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.