Home / 139,542,972.24-192,575,642.76-77,667,272.40

Finding the Fourth Proportional to 139,542,972.24, 192,575,642.76 and 77,667,272.40

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Solution

The fourth proportional to 139,542,972.24, 192,575,642.76 and 77,667,272.40 is: 107,184,365.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,542,972.24 : 192,575,642.76 = 77,667,272.40 : x
  2. Step 2: Convert to fraction form
    139,542,972.24/192,575,642.76 = 77,667,272.40/x
  3. Step 3: Cross multiply
    139,542,972.24x = 192,575,642.76 × 77,667,272.40
  4. Step 4: Simplify right side
    139,542,972.24x = 14,956,824,903,846,008
  5. Step 5: Solve for x
    x = 14,956,824,903,846,008/139,542,972.24
  6. Step 6: Final answer
    x = 107,184,365.24

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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.