Home / 186,624,200.10-279,936,300.15-128,425,505.70

Finding the Fourth Proportional to 186,624,200.10, 279,936,300.15 and 128,425,505.70

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Solution

The fourth proportional to 186,624,200.10, 279,936,300.15 and 128,425,505.70 is: 192,638,258.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624,200.10 : 279,936,300.15 = 128,425,505.70 : x
  2. Step 2: Convert to fraction form
    186,624,200.10/279,936,300.15 = 128,425,505.70/x
  3. Step 3: Cross multiply
    186,624,200.10x = 279,936,300.15 × 128,425,505.70
  4. Step 4: Simplify right side
    186,624,200.10x = 35,950,960,910,550,732
  5. Step 5: Solve for x
    x = 35,950,960,910,550,732/186,624,200.10
  6. Step 6: Final answer
    x = 192,638,258.55

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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.