Home / 78,319,579.69-108,082,820.10-43,039,578.16

Finding the Fourth Proportional to 78,319,579.69, 108,082,820.10 and 43,039,578.16

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Solution

The fourth proportional to 78,319,579.69, 108,082,820.10 and 43,039,578.16 is: 59,395,607.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,319,579.69 : 108,082,820.10 = 43,039,578.16 : x
  2. Step 2: Convert to fraction form
    78,319,579.69/108,082,820.10 = 43,039,578.16/x
  3. Step 3: Cross multiply
    78,319,579.69x = 108,082,820.10 × 43,039,578.16
  4. Step 4: Simplify right side
    78,319,579.69x = 4,651,838,983,447,168
  5. Step 5: Solve for x
    x = 4,651,838,983,447,168/78,319,579.69
  6. Step 6: Final answer
    x = 59,395,607.10

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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.