Home / 770,147,805.60-1,154,932,171.47-278,739,665.64

Finding the Fourth Proportional to 770,147,805.60, 1,154,932,171.47 and 278,739,665.64

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Solution

The fourth proportional to 770,147,805.60, 1,154,932,171.47 and 278,739,665.64 is: 418,004,706.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,147,805.60 : 1,154,932,171.47 = 278,739,665.64 : x
  2. Step 2: Convert to fraction form
    770,147,805.60/1,154,932,171.47 = 278,739,665.64/x
  3. Step 3: Cross multiply
    770,147,805.60x = 1,154,932,171.47 × 278,739,665.64
  4. Step 4: Simplify right side
    770,147,805.60x = 321,925,407,312,426,944
  5. Step 5: Solve for x
    x = 321,925,407,312,426,944/770,147,805.60
  6. Step 6: Final answer
    x = 418,004,706.33

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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.