Home / 256,407,112.20-384,610,668.30-74,660,219.40

Finding the Fourth Proportional to 256,407,112.20, 384,610,668.30 and 74,660,219.40

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Solution

The fourth proportional to 256,407,112.20, 384,610,668.30 and 74,660,219.40 is: 111,990,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,407,112.20 : 384,610,668.30 = 74,660,219.40 : x
  2. Step 2: Convert to fraction form
    256,407,112.20/384,610,668.30 = 74,660,219.40/x
  3. Step 3: Cross multiply
    256,407,112.20x = 384,610,668.30 × 74,660,219.40
  4. Step 4: Simplify right side
    256,407,112.20x = 28,715,116,878,858,628
  5. Step 5: Solve for x
    x = 28,715,116,878,858,628/256,407,112.20
  6. Step 6: Final answer
    x = 111,990,329.10

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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.