Home / 80,378,436.64-110,918,894.16-45,573,479.68

Finding the Fourth Proportional to 80,378,436.64, 110,918,894.16 and 45,573,479.68

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Solution

The fourth proportional to 80,378,436.64, 110,918,894.16 and 45,573,479.68 is: 62,889,503.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,378,436.64 : 110,918,894.16 = 45,573,479.68 : x
  2. Step 2: Convert to fraction form
    80,378,436.64/110,918,894.16 = 45,573,479.68/x
  3. Step 3: Cross multiply
    80,378,436.64x = 110,918,894.16 × 45,573,479.68
  4. Step 4: Simplify right side
    80,378,436.64x = 5,054,959,969,128,830
  5. Step 5: Solve for x
    x = 5,054,959,969,128,830/80,378,436.64
  6. Step 6: Final answer
    x = 62,889,503.46

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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.