Home / 139,115,395.24-191,971,751.34-77,231,750.20

Finding the Fourth Proportional to 139,115,395.24, 191,971,751.34 and 77,231,750.20

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Solution

The fourth proportional to 139,115,395.24, 191,971,751.34 and 77,231,750.20 is: 106,575,654.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,115,395.24 : 191,971,751.34 = 77,231,750.20 : x
  2. Step 2: Convert to fraction form
    139,115,395.24/191,971,751.34 = 77,231,750.20/x
  3. Step 3: Cross multiply
    139,115,395.24x = 191,971,751.34 × 77,231,750.20
  4. Step 4: Simplify right side
    139,115,395.24x = 14,826,314,344,947,396
  5. Step 5: Solve for x
    x = 14,826,314,344,947,396/139,115,395.24
  6. Step 6: Final answer
    x = 106,575,654.83

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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.