Home / 77,493,005.07-116,239,667.52-72,757,865.76

Finding the Fourth Proportional to 77,493,005.07, 116,239,667.52 and 72,757,865.76

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Solution

The fourth proportional to 77,493,005.07, 116,239,667.52 and 72,757,865.76 is: 109,136,948.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,493,005.07 : 116,239,667.52 = 72,757,865.76 : x
  2. Step 2: Convert to fraction form
    77,493,005.07/116,239,667.52 = 72,757,865.76/x
  3. Step 3: Cross multiply
    77,493,005.07x = 116,239,667.52 × 72,757,865.76
  4. Step 4: Simplify right side
    77,493,005.07x = 8,457,350,125,243,903
  5. Step 5: Solve for x
    x = 8,457,350,125,243,903/77,493,005.07
  6. Step 6: Final answer
    x = 109,136,948.79

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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.