Home / 56,819,260.76-78,410,542.59-30,713,778.05

Finding the Fourth Proportional to 56,819,260.76, 78,410,542.59 and 30,713,778.05

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Solution

The fourth proportional to 56,819,260.76, 78,410,542.59 and 30,713,778.05 is: 42,384,993.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,819,260.76 : 78,410,542.59 = 30,713,778.05 : x
  2. Step 2: Convert to fraction form
    56,819,260.76/78,410,542.59 = 30,713,778.05/x
  3. Step 3: Cross multiply
    56,819,260.76x = 78,410,542.59 × 30,713,778.05
  4. Step 4: Simplify right side
    56,819,260.76x = 2,408,284,001,497,279.50
  5. Step 5: Solve for x
    x = 2,408,284,001,497,279.50/56,819,260.76
  6. Step 6: Final answer
    x = 42,384,993.57

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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.