Home / 290,315,936.40-435,473,904.60-199,616,672.40

Finding the Fourth Proportional to 290,315,936.40, 435,473,904.60 and 199,616,672.40

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Solution

The fourth proportional to 290,315,936.40, 435,473,904.60 and 199,616,672.40 is: 299,425,008.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,315,936.40 : 435,473,904.60 = 199,616,672.40 : x
  2. Step 2: Convert to fraction form
    290,315,936.40/435,473,904.60 = 199,616,672.40/x
  3. Step 3: Cross multiply
    290,315,936.40x = 435,473,904.60 × 199,616,672.40
  4. Step 4: Simplify right side
    290,315,936.40x = 86,927,851,753,287,056
  5. Step 5: Solve for x
    x = 86,927,851,753,287,056/290,315,936.40
  6. Step 6: Final answer
    x = 299,425,008.60

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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.