Home / 30,240,979.20-45,367,373.70-12,042,077.40

Finding the Fourth Proportional to 30,240,979.20, 45,367,373.70 and 12,042,077.40

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Solution

The fourth proportional to 30,240,979.20, 45,367,373.70 and 12,042,077.40 is: 18,065,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,240,979.20 : 45,367,373.70 = 12,042,077.40 : x
  2. Step 2: Convert to fraction form
    30,240,979.20/45,367,373.70 = 12,042,077.40/x
  3. Step 3: Cross multiply
    30,240,979.20x = 45,367,373.70 × 12,042,077.40
  4. Step 4: Simplify right side
    30,240,979.20x = 546,317,425,530,124.44
  5. Step 5: Solve for x
    x = 546,317,425,530,124.44/30,240,979.20
  6. Step 6: Final answer
    x = 18,065,467.45

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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.