Home / 186,660,000.40-279,990,000.60-78,954,624.40

Finding the Fourth Proportional to 186,660,000.40, 279,990,000.60 and 78,954,624.40

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Solution

The fourth proportional to 186,660,000.40, 279,990,000.60 and 78,954,624.40 is: 118,431,936.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,660,000.40 : 279,990,000.60 = 78,954,624.40 : x
  2. Step 2: Convert to fraction form
    186,660,000.40/279,990,000.60 = 78,954,624.40/x
  3. Step 3: Cross multiply
    186,660,000.40x = 279,990,000.60 × 78,954,624.40
  4. Step 4: Simplify right side
    186,660,000.40x = 22,106,505,333,128,780
  5. Step 5: Solve for x
    x = 22,106,505,333,128,780/186,660,000.40
  6. Step 6: Final answer
    x = 118,431,936.60

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1.5x scale

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.