Home / 78,319,578.69-108,082,818.72-43,039,577.16

Finding the Fourth Proportional to 78,319,578.69, 108,082,818.72 and 43,039,577.16

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Solution

The fourth proportional to 78,319,578.69, 108,082,818.72 and 43,039,577.16 is: 59,395,605.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,319,578.69 : 108,082,818.72 = 43,039,577.16 : x
  2. Step 2: Convert to fraction form
    78,319,578.69/108,082,818.72 = 43,039,577.16/x
  3. Step 3: Cross multiply
    78,319,578.69x = 108,082,818.72 × 43,039,577.16
  4. Step 4: Simplify right side
    78,319,578.69x = 4,651,838,815,969,732
  5. Step 5: Solve for x
    x = 4,651,838,815,969,732/78,319,578.69
  6. Step 6: Final answer
    x = 59,395,605.72

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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.