Home / 885,773,464.72-1,222,343,698.90-489,287,920.90

Finding the Fourth Proportional to 885,773,464.72, 1,222,343,698.90 and 489,287,920.90

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Solution

The fourth proportional to 885,773,464.72, 1,222,343,698.90 and 489,287,920.90 is: 675,204,249.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,773,464.72 : 1,222,343,698.90 = 489,287,920.90 : x
  2. Step 2: Convert to fraction form
    885,773,464.72/1,222,343,698.90 = 489,287,920.90/x
  3. Step 3: Cross multiply
    885,773,464.72x = 1,222,343,698.90 × 489,287,920.90
  4. Step 4: Simplify right side
    885,773,464.72x = 598,078,007,059,996,672
  5. Step 5: Solve for x
    x = 598,078,007,059,996,672/885,773,464.72
  6. Step 6: Final answer
    x = 675,204,249.03

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1.5x scale

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.