Home / 128,465,749.18-192,667,769.53-59,312,109.81

Finding the Fourth Proportional to 128,465,749.18, 192,667,769.53 and 59,312,109.81

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Solution

The fourth proportional to 128,465,749.18, 192,667,769.53 and 59,312,109.81 is: 88,953,919.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,465,749.18 : 192,667,769.53 = 59,312,109.81 : x
  2. Step 2: Convert to fraction form
    128,465,749.18/192,667,769.53 = 59,312,109.81/x
  3. Step 3: Cross multiply
    128,465,749.18x = 192,667,769.53 × 59,312,109.81
  4. Step 4: Simplify right side
    128,465,749.18x = 11,427,531,903,211,132
  5. Step 5: Solve for x
    x = 11,427,531,903,211,132/128,465,749.18
  6. Step 6: Final answer
    x = 88,953,919.44

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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.