Home / 129,968,417,984.58-179,329,558,732.33-75,034,639,080.90

Finding the Fourth Proportional to 129,968,417,984.58, 179,329,558,732.33 and 75,034,639,080.90

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Solution

The fourth proportional to 129,968,417,984.58, 179,329,558,732.33 and 75,034,639,080.90 is: 103,532,295,958.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,968,417,984.58 : 179,329,558,732.33 = 75,034,639,080.90 : x
  2. Step 2: Convert to fraction form
    129,968,417,984.58/179,329,558,732.33 = 75,034,639,080.90/x
  3. Step 3: Cross multiply
    129,968,417,984.58x = 179,329,558,732.33 × 75,034,639,080.90
  4. Step 4: Simplify right side
    129,968,417,984.58x = 13,455,928,716,017,438,556,160
  5. Step 5: Solve for x
    x = 13,455,928,716,017,438,556,160/129,968,417,984.58
  6. Step 6: Final answer
    x = 103,532,295,958.35

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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.