Home / 186,618,077.28-280,052,084.88-77,443,353.28

Finding the Fourth Proportional to 186,618,077.28, 280,052,084.88 and 77,443,353.28

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Solution

The fourth proportional to 186,618,077.28, 280,052,084.88 and 77,443,353.28 is: 116,216,889.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,618,077.28 : 280,052,084.88 = 77,443,353.28 : x
  2. Step 2: Convert to fraction form
    186,618,077.28/280,052,084.88 = 77,443,353.28/x
  3. Step 3: Cross multiply
    186,618,077.28x = 280,052,084.88 × 77,443,353.28
  4. Step 4: Simplify right side
    186,618,077.28x = 21,688,172,546,512,452
  5. Step 5: Solve for x
    x = 21,688,172,546,512,452/186,618,077.28
  6. Step 6: Final answer
    x = 116,216,889.93

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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.