Home / 11,977,830.45-17,980,031.70-7,434,009.90

Finding the Fourth Proportional to 11,977,830.45, 17,980,031.70 and 7,434,009.90

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Solution

The fourth proportional to 11,977,830.45, 17,980,031.70 and 7,434,009.90 is: 11,159,260.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977,830.45 : 17,980,031.70 = 7,434,009.90 : x
  2. Step 2: Convert to fraction form
    11,977,830.45/17,980,031.70 = 7,434,009.90/x
  3. Step 3: Cross multiply
    11,977,830.45x = 17,980,031.70 × 7,434,009.90
  4. Step 4: Simplify right side
    11,977,830.45x = 133,663,733,660,113.83
  5. Step 5: Solve for x
    x = 133,663,733,660,113.83/11,977,830.45
  6. Step 6: Final answer
    x = 11,159,260.79

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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.