Home / 186,787,871.20-280,181,806.80-118,931,384.80

Finding the Fourth Proportional to 186,787,871.20, 280,181,806.80 and 118,931,384.80

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Solution

The fourth proportional to 186,787,871.20, 280,181,806.80 and 118,931,384.80 is: 178,397,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,787,871.20 : 280,181,806.80 = 118,931,384.80 : x
  2. Step 2: Convert to fraction form
    186,787,871.20/280,181,806.80 = 118,931,384.80/x
  3. Step 3: Cross multiply
    186,787,871.20x = 280,181,806.80 × 118,931,384.80
  4. Step 4: Simplify right side
    186,787,871.20x = 33,322,410,278,490,056
  5. Step 5: Solve for x
    x = 33,322,410,278,490,056/186,787,871.20
  6. Step 6: Final answer
    x = 178,397,077.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.