Home / 77,879,803.85-107,507,221.40-48,525,639.66

Finding the Fourth Proportional to 77,879,803.85, 107,507,221.40 and 48,525,639.66

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Solution

The fourth proportional to 77,879,803.85, 107,507,221.40 and 48,525,639.66 is: 66,986,001.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,879,803.85 : 107,507,221.40 = 48,525,639.66 : x
  2. Step 2: Convert to fraction form
    77,879,803.85/107,507,221.40 = 48,525,639.66/x
  3. Step 3: Cross multiply
    77,879,803.85x = 107,507,221.40 × 48,525,639.66
  4. Step 4: Simplify right side
    77,879,803.85x = 5,216,856,685,724,076
  5. Step 5: Solve for x
    x = 5,216,856,685,724,076/77,879,803.85
  6. Step 6: Final answer
    x = 66,986,001.87

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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.