Home / 78,319,583.68-108,082,825.62-43,039,582.16

Finding the Fourth Proportional to 78,319,583.68, 108,082,825.62 and 43,039,582.16

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Solution

The fourth proportional to 78,319,583.68, 108,082,825.62 and 43,039,582.16 is: 59,395,612.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,319,583.68 : 108,082,825.62 = 43,039,582.16 : x
  2. Step 2: Convert to fraction form
    78,319,583.68/108,082,825.62 = 43,039,582.16/x
  3. Step 3: Cross multiply
    78,319,583.68x = 108,082,825.62 × 43,039,582.16
  4. Step 4: Simplify right side
    78,319,583.68x = 4,651,839,653,356,943
  5. Step 5: Solve for x
    x = 4,651,839,653,356,943/78,319,583.68
  6. Step 6: Final answer
    x = 59,395,612.63

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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.