Home / 56,978,463.69-78,630,040.74-30,873,085.37

Finding the Fourth Proportional to 56,978,463.69, 78,630,040.74 and 30,873,085.37

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Solution

The fourth proportional to 56,978,463.69, 78,630,040.74 and 30,873,085.37 is: 42,604,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,978,463.69 : 78,630,040.74 = 30,873,085.37 : x
  2. Step 2: Convert to fraction form
    56,978,463.69/78,630,040.74 = 30,873,085.37/x
  3. Step 3: Cross multiply
    56,978,463.69x = 78,630,040.74 × 30,873,085.37
  4. Step 4: Simplify right side
    56,978,463.69x = 2,427,551,960,430,084.50
  5. Step 5: Solve for x
    x = 2,427,551,960,430,084.50/56,978,463.69
  6. Step 6: Final answer
    x = 42,604,728.23

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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.