Home / 30,240,911.70-45,367,272.45-12,042,009.90

Finding the Fourth Proportional to 30,240,911.70, 45,367,272.45 and 12,042,009.90

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Solution

The fourth proportional to 30,240,911.70, 45,367,272.45 and 12,042,009.90 is: 18,065,366.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240,911.70 : 45,367,272.45 = 12,042,009.90 : x
  2. Step 2: Convert to fraction form
    30,240,911.70/45,367,272.45 = 12,042,009.90/x
  3. Step 3: Cross multiply
    30,240,911.70x = 45,367,272.45 × 12,042,009.90
  4. Step 4: Simplify right side
    30,240,911.70x = 546,313,143,978,897.31
  5. Step 5: Solve for x
    x = 546,313,143,978,897.31/30,240,911.70
  6. Step 6: Final answer
    x = 18,065,366.20

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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.