Home / 72,749,016.32-100,378,656.09-41,803,206.89

Finding the Fourth Proportional to 72,749,016.32, 100,378,656.09 and 41,803,206.89

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Solution

The fourth proportional to 72,749,016.32, 100,378,656.09 and 41,803,206.89 is: 57,679,813.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,749,016.32 : 100,378,656.09 = 41,803,206.89 : x
  2. Step 2: Convert to fraction form
    72,749,016.32/100,378,656.09 = 41,803,206.89/x
  3. Step 3: Cross multiply
    72,749,016.32x = 100,378,656.09 × 41,803,206.89
  4. Step 4: Simplify right side
    72,749,016.32x = 4,196,149,727,368,535
  5. Step 5: Solve for x
    x = 4,196,149,727,368,535/72,749,016.32
  6. Step 6: Final answer
    x = 57,679,813.97

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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.