Home / 780,325,394.09-1,170,429,228.93-248,515,325.69

Finding the Fourth Proportional to 780,325,394.09, 1,170,429,228.93 and 248,515,325.69

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Solution

The fourth proportional to 780,325,394.09, 1,170,429,228.93 and 248,515,325.69 is: 372,754,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,325,394.09 : 1,170,429,228.93 = 248,515,325.69 : x
  2. Step 2: Convert to fraction form
    780,325,394.09/1,170,429,228.93 = 248,515,325.69/x
  3. Step 3: Cross multiply
    780,325,394.09x = 1,170,429,228.93 × 248,515,325.69
  4. Step 4: Simplify right side
    780,325,394.09x = 290,869,601,024,634,560
  5. Step 5: Solve for x
    x = 290,869,601,024,634,560/780,325,394.09
  6. Step 6: Final answer
    x = 372,754,242.30

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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.