Home / 788,230,596.74-1,181,981,962.51-290,115,992.12

Finding the Fourth Proportional to 788,230,596.74, 1,181,981,962.51 and 290,115,992.12

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Solution

The fourth proportional to 788,230,596.74, 1,181,981,962.51 and 290,115,992.12 is: 435,040,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,230,596.74 : 1,181,981,962.51 = 290,115,992.12 : x
  2. Step 2: Convert to fraction form
    788,230,596.74/1,181,981,962.51 = 290,115,992.12/x
  3. Step 3: Cross multiply
    788,230,596.74x = 1,181,981,962.51 × 290,115,992.12
  4. Step 4: Simplify right side
    788,230,596.74x = 342,911,869,714,898,112
  5. Step 5: Solve for x
    x = 342,911,869,714,898,112/788,230,596.74
  6. Step 6: Final answer
    x = 435,040,039.22

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1.5x scale

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.