Home / 78,072,678.72-107,738,981.28-43,265,298.24

Finding the Fourth Proportional to 78,072,678.72, 107,738,981.28 and 43,265,298.24

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Solution

The fourth proportional to 78,072,678.72, 107,738,981.28 and 43,265,298.24 is: 59,705,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,072,678.72 : 107,738,981.28 = 43,265,298.24 : x
  2. Step 2: Convert to fraction form
    78,072,678.72/107,738,981.28 = 43,265,298.24/x
  3. Step 3: Cross multiply
    78,072,678.72x = 107,738,981.28 × 43,265,298.24
  4. Step 4: Simplify right side
    78,072,678.72x = 4,661,359,157,152,977
  5. Step 5: Solve for x
    x = 4,661,359,157,152,977/78,072,678.72
  6. Step 6: Final answer
    x = 59,705,382.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.