Home / 219,510,613.07-302,926,140.39-120,392,069.75

Finding the Fourth Proportional to 219,510,613.07, 302,926,140.39 and 120,392,069.75

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Solution

The fourth proportional to 219,510,613.07, 302,926,140.39 and 120,392,069.75 is: 166,141,875.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,510,613.07 : 302,926,140.39 = 120,392,069.75 : x
  2. Step 2: Convert to fraction form
    219,510,613.07/302,926,140.39 = 120,392,069.75/x
  3. Step 3: Cross multiply
    219,510,613.07x = 302,926,140.39 × 120,392,069.75
  4. Step 4: Simplify right side
    219,510,613.07x = 36,469,905,023,003,984
  5. Step 5: Solve for x
    x = 36,469,905,023,003,984/219,510,613.07
  6. Step 6: Final answer
    x = 166,141,875.84

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1.5x scale

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.