Home / 424,325,581.44-585,068,301.60-290,427,998.40

Finding the Fourth Proportional to 424,325,581.44, 585,068,301.60 and 290,427,998.40

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Solution

The fourth proportional to 424,325,581.44, 585,068,301.60 and 290,427,998.40 is: 400,447,729.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,325,581.44 : 585,068,301.60 = 290,427,998.40 : x
  2. Step 2: Convert to fraction form
    424,325,581.44/585,068,301.60 = 290,427,998.40/x
  3. Step 3: Cross multiply
    424,325,581.44x = 585,068,301.60 × 290,427,998.40
  4. Step 4: Simplify right side
    424,325,581.44x = 169,920,215,760,975,520
  5. Step 5: Solve for x
    x = 169,920,215,760,975,520/424,325,581.44
  6. Step 6: Final answer
    x = 400,447,729.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.