Home / 142,508,333.99-213,794,733.81-76,928,064.12

Finding the Fourth Proportional to 142,508,333.99, 213,794,733.81 and 76,928,064.12

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Solution

The fourth proportional to 142,508,333.99, 213,794,733.81 and 76,928,064.12 is: 115,409,495.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,508,333.99 : 213,794,733.81 = 76,928,064.12 : x
  2. Step 2: Convert to fraction form
    142,508,333.99/213,794,733.81 = 76,928,064.12/x
  3. Step 3: Cross multiply
    142,508,333.99x = 213,794,733.81 × 76,928,064.12
  4. Step 4: Simplify right side
    142,508,333.99x = 16,446,814,991,054,014
  5. Step 5: Solve for x
    x = 16,446,814,991,054,014/142,508,333.99
  6. Step 6: Final answer
    x = 115,409,495.93

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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.