Home / 78,586,482.06-107,663,864.58-75,641,079.33

Finding the Fourth Proportional to 78,586,482.06, 107,663,864.58 and 75,641,079.33

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Solution

The fourth proportional to 78,586,482.06, 107,663,864.58 and 75,641,079.33 is: 103,628,648.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,586,482.06 : 107,663,864.58 = 75,641,079.33 : x
  2. Step 2: Convert to fraction form
    78,586,482.06/107,663,864.58 = 75,641,079.33/x
  3. Step 3: Cross multiply
    78,586,482.06x = 107,663,864.58 × 75,641,079.33
  4. Step 4: Simplify right side
    78,586,482.06x = 8,143,810,921,670,157
  5. Step 5: Solve for x
    x = 8,143,810,921,670,157/78,586,482.06
  6. Step 6: Final answer
    x = 103,628,648.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.