Home / 77,879,846.42-107,507,280.12-48,525,682.13

Finding the Fourth Proportional to 77,879,846.42, 107,507,280.12 and 48,525,682.13

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Solution

The fourth proportional to 77,879,846.42, 107,507,280.12 and 48,525,682.13 is: 66,986,060.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,879,846.42 : 107,507,280.12 = 48,525,682.13 : x
  2. Step 2: Convert to fraction form
    77,879,846.42/107,507,280.12 = 48,525,682.13/x
  3. Step 3: Cross multiply
    77,879,846.42x = 107,507,280.12 × 48,525,682.13
  4. Step 4: Simplify right side
    77,879,846.42x = 5,216,864,101,226,452
  5. Step 5: Solve for x
    x = 5,216,864,101,226,452/77,879,846.42
  6. Step 6: Final answer
    x = 66,986,060.47

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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.