Home / 76,720,816.80-105,876,804.24-45,798,932.16

Finding the Fourth Proportional to 76,720,816.80, 105,876,804.24 and 45,798,932.16

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Solution

The fourth proportional to 76,720,816.80, 105,876,804.24 and 45,798,932.16 is: 63,203,766.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,720,816.80 : 105,876,804.24 = 45,798,932.16 : x
  2. Step 2: Convert to fraction form
    76,720,816.80/105,876,804.24 = 45,798,932.16/x
  3. Step 3: Cross multiply
    76,720,816.80x = 105,876,804.24 × 45,798,932.16
  4. Step 4: Simplify right side
    76,720,816.80x = 4,849,044,574,705,360
  5. Step 5: Solve for x
    x = 4,849,044,574,705,360/76,720,816.80
  6. Step 6: Final answer
    x = 63,203,766.29

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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.