Home / 485,523,755.03-728,164,390.74-190,479,007.69

Finding the Fourth Proportional to 485,523,755.03, 728,164,390.74 and 190,479,007.69

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Solution

The fourth proportional to 485,523,755.03, 728,164,390.74 and 190,479,007.69 is: 285,670,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,523,755.03 : 728,164,390.74 = 190,479,007.69 : x
  2. Step 2: Convert to fraction form
    485,523,755.03/728,164,390.74 = 190,479,007.69/x
  3. Step 3: Cross multiply
    485,523,755.03x = 728,164,390.74 × 190,479,007.69
  4. Step 4: Simplify right side
    485,523,755.03x = 138,700,030,580,815,840
  5. Step 5: Solve for x
    x = 138,700,030,580,815,840/485,523,755.03
  6. Step 6: Final answer
    x = 285,670,946.36

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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.