Home / 780,778,063.68-1,171,119,177.60-320,704,297.60

Finding the Fourth Proportional to 780,778,063.68, 1,171,119,177.60 and 320,704,297.60

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Solution

The fourth proportional to 780,778,063.68, 1,171,119,177.60 and 320,704,297.60 is: 481,036,764.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,778,063.68 : 1,171,119,177.60 = 320,704,297.60 : x
  2. Step 2: Convert to fraction form
    780,778,063.68/1,171,119,177.60 = 320,704,297.60/x
  3. Step 3: Cross multiply
    780,778,063.68x = 1,171,119,177.60 × 320,704,297.60
  4. Step 4: Simplify right side
    780,778,063.68x = 375,582,953,258,097,664
  5. Step 5: Solve for x
    x = 375,582,953,258,097,664/780,778,063.68
  6. Step 6: Final answer
    x = 481,036,764.13

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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.