Home / 129,968,417,987.08-179,329,558,735.78-75,034,639,083.40

Finding the Fourth Proportional to 129,968,417,987.08, 179,329,558,735.78 and 75,034,639,083.40

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Solution

The fourth proportional to 129,968,417,987.08, 179,329,558,735.78 and 75,034,639,083.40 is: 103,532,295,961.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,968,417,987.08 : 179,329,558,735.78 = 75,034,639,083.40 : x
  2. Step 2: Convert to fraction form
    129,968,417,987.08/179,329,558,735.78 = 75,034,639,083.40/x
  3. Step 3: Cross multiply
    129,968,417,987.08x = 179,329,558,735.78 × 75,034,639,083.40
  4. Step 4: Simplify right side
    129,968,417,987.08x = 13,455,928,716,724,631,764,992
  5. Step 5: Solve for x
    x = 13,455,928,716,724,631,764,992/129,968,417,987.08
  6. Step 6: Final answer
    x = 103,532,295,961.80

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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.