Home / 186,624,022.60-279,936,033.90-128,994,531.40

Finding the Fourth Proportional to 186,624,022.60, 279,936,033.90 and 128,994,531.40

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Solution

The fourth proportional to 186,624,022.60, 279,936,033.90 and 128,994,531.40 is: 193,491,797.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624,022.60 : 279,936,033.90 = 128,994,531.40 : x
  2. Step 2: Convert to fraction form
    186,624,022.60/279,936,033.90 = 128,994,531.40/x
  3. Step 3: Cross multiply
    186,624,022.60x = 279,936,033.90 × 128,994,531.40
  4. Step 4: Simplify right side
    186,624,022.60x = 36,110,217,514,905,016
  5. Step 5: Solve for x
    x = 36,110,217,514,905,016/186,624,022.60
  6. Step 6: Final answer
    x = 193,491,797.10

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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.