Home / 142,539,790.56-196,704,911.20-77,349,694.56

Finding the Fourth Proportional to 142,539,790.56, 196,704,911.20 and 77,349,694.56

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Solution

The fourth proportional to 142,539,790.56, 196,704,911.20 and 77,349,694.56 is: 106,742,578.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,539,790.56 : 196,704,911.20 = 77,349,694.56 : x
  2. Step 2: Convert to fraction form
    142,539,790.56/196,704,911.20 = 77,349,694.56/x
  3. Step 3: Cross multiply
    142,539,790.56x = 196,704,911.20 × 77,349,694.56
  4. Step 4: Simplify right side
    142,539,790.56x = 15,215,064,799,771,922
  5. Step 5: Solve for x
    x = 15,215,064,799,771,922/142,539,790.56
  6. Step 6: Final answer
    x = 106,742,578.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.