Home / 78,718,437.32-108,624,646.88-50,842,381.28

Finding the Fourth Proportional to 78,718,437.32, 108,624,646.88 and 50,842,381.28

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Solution

The fourth proportional to 78,718,437.32, 108,624,646.88 and 50,842,381.28 is: 70,158,096.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,718,437.32 : 108,624,646.88 = 50,842,381.28 : x
  2. Step 2: Convert to fraction form
    78,718,437.32/108,624,646.88 = 50,842,381.28/x
  3. Step 3: Cross multiply
    78,718,437.32x = 108,624,646.88 × 50,842,381.28
  4. Step 4: Simplify right side
    78,718,437.32x = 5,522,735,713,078,322
  5. Step 5: Solve for x
    x = 5,522,735,713,078,322/78,718,437.32
  6. Step 6: Final answer
    x = 70,158,096.39

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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.