Home / 30,241,007.70-45,367,416.45-12,042,105.90

Finding the Fourth Proportional to 30,241,007.70, 45,367,416.45 and 12,042,105.90

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Solution

The fourth proportional to 30,241,007.70, 45,367,416.45 and 12,042,105.90 is: 18,065,510.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,241,007.70 : 45,367,416.45 = 12,042,105.90 : x
  2. Step 2: Convert to fraction form
    30,241,007.70/45,367,416.45 = 12,042,105.90/x
  3. Step 3: Cross multiply
    30,241,007.70x = 45,367,416.45 × 12,042,105.90
  4. Step 4: Simplify right side
    30,241,007.70x = 546,319,233,300,302.12
  5. Step 5: Solve for x
    x = 546,319,233,300,302.12/30,241,007.70
  6. Step 6: Final answer
    x = 18,065,510.21

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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.