Home / 289,384,258.40-434,076,387.60-267,213,327.20

Finding the Fourth Proportional to 289,384,258.40, 434,076,387.60 and 267,213,327.20

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Solution

The fourth proportional to 289,384,258.40, 434,076,387.60 and 267,213,327.20 is: 400,819,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,384,258.40 : 434,076,387.60 = 267,213,327.20 : x
  2. Step 2: Convert to fraction form
    289,384,258.40/434,076,387.60 = 267,213,327.20/x
  3. Step 3: Cross multiply
    289,384,258.40x = 434,076,387.60 × 267,213,327.20
  4. Step 4: Simplify right side
    289,384,258.40x = 115,990,995,789,552,816
  5. Step 5: Solve for x
    x = 115,990,995,789,552,816/289,384,258.40
  6. Step 6: Final answer
    x = 400,819,990.80

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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.