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Finding the Fourth Proportional to 85,102,604, 127,653,908.88 and 21,277,196

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Solution

The fourth proportional to 85,102,604, 127,653,908.88 and 21,277,196 is: 31,915,794.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,102,604 : 127,653,908.88 = 21,277,196 : x
  2. Step 2: Convert to fraction form
    85,102,604/127,653,908.88 = 21,277,196/x
  3. Step 3: Cross multiply
    85,102,604x = 127,653,908.88 × 21,277,196
  4. Step 4: Simplify right side
    85,102,604x = 2,716,117,239,405,900.50
  5. Step 5: Solve for x
    x = 2,716,117,239,405,900.50/85,102,604
  6. Step 6: Final answer
    x = 31,915,794.72

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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.