Home / 186,624,741.40-279,937,112.10-128,174,104.60

Finding the Fourth Proportional to 186,624,741.40, 279,937,112.10 and 128,174,104.60

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Solution

The fourth proportional to 186,624,741.40, 279,937,112.10 and 128,174,104.60 is: 192,261,156.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,624,741.40 : 279,937,112.10 = 128,174,104.60 : x
  2. Step 2: Convert to fraction form
    186,624,741.40/279,937,112.10 = 128,174,104.60/x
  3. Step 3: Cross multiply
    186,624,741.40x = 279,937,112.10 × 128,174,104.60
  4. Step 4: Simplify right side
    186,624,741.40x = 35,880,688,687,727,328
  5. Step 5: Solve for x
    x = 35,880,688,687,727,328/186,624,741.40
  6. Step 6: Final answer
    x = 192,261,156.90

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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.