Home / 127,281,819.20-190,922,728.80-46,492,289.60

Finding the Fourth Proportional to 127,281,819.20, 190,922,728.80 and 46,492,289.60

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Solution

The fourth proportional to 127,281,819.20, 190,922,728.80 and 46,492,289.60 is: 69,738,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,281,819.20 : 190,922,728.80 = 46,492,289.60 : x
  2. Step 2: Convert to fraction form
    127,281,819.20/190,922,728.80 = 46,492,289.60/x
  3. Step 3: Cross multiply
    127,281,819.20x = 190,922,728.80 × 46,492,289.60
  4. Step 4: Simplify right side
    127,281,819.20x = 8,876,434,798,591,861
  5. Step 5: Solve for x
    x = 8,876,434,798,591,861/127,281,819.20
  6. Step 6: Final answer
    x = 69,738,434.40

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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.