Home / 142,914,021.69-214,372,349.60-40,678,031.37

Finding the Fourth Proportional to 142,914,021.69, 214,372,349.60 and 40,678,031.37

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Solution

The fourth proportional to 142,914,021.69, 214,372,349.60 and 40,678,031.37 is: 61,017,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,914,021.69 : 214,372,349.60 = 40,678,031.37 : x
  2. Step 2: Convert to fraction form
    142,914,021.69/214,372,349.60 = 40,678,031.37/x
  3. Step 3: Cross multiply
    142,914,021.69x = 214,372,349.60 × 40,678,031.37
  4. Step 4: Simplify right side
    142,914,021.69x = 8,720,245,161,686,016
  5. Step 5: Solve for x
    x = 8,720,245,161,686,016/142,914,021.69
  6. Step 6: Final answer
    x = 61,017,421.93

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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.