Home / 77,879,804.10-107,507,221.74-48,525,639.90

Finding the Fourth Proportional to 77,879,804.10, 107,507,221.74 and 48,525,639.90

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Solution

The fourth proportional to 77,879,804.10, 107,507,221.74 and 48,525,639.90 is: 66,986,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,879,804.10 : 107,507,221.74 = 48,525,639.90 : x
  2. Step 2: Convert to fraction form
    77,879,804.10/107,507,221.74 = 48,525,639.90/x
  3. Step 3: Cross multiply
    77,879,804.10x = 107,507,221.74 × 48,525,639.90
  4. Step 4: Simplify right side
    77,879,804.10x = 5,216,856,728,804,691
  5. Step 5: Solve for x
    x = 5,216,856,728,804,691/77,879,804.10
  6. Step 6: Final answer
    x = 66,986,002.20

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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.