Home / 82,378,208.15-113,649,564.58-47,077,074.69

Finding the Fourth Proportional to 82,378,208.15, 113,649,564.58 and 47,077,074.69

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Solution

The fourth proportional to 82,378,208.15, 113,649,564.58 and 47,077,074.69 is: 64,947,868.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,378,208.15 : 113,649,564.58 = 47,077,074.69 : x
  2. Step 2: Convert to fraction form
    82,378,208.15/113,649,564.58 = 47,077,074.69/x
  3. Step 3: Cross multiply
    82,378,208.15x = 113,649,564.58 × 47,077,074.69
  4. Step 4: Simplify right side
    82,378,208.15x = 5,350,289,039,674,760
  5. Step 5: Solve for x
    x = 5,350,289,039,674,760/82,378,208.15
  6. Step 6: Final answer
    x = 64,947,868.62

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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.