Home / 20,042,156.64-30,066,979.92-9,113,148.96

Finding the Fourth Proportional to 20,042,156.64, 30,066,979.92 and 9,113,148.96

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Solution

The fourth proportional to 20,042,156.64, 30,066,979.92 and 9,113,148.96 is: 13,671,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042,156.64 : 30,066,979.92 = 9,113,148.96 : x
  2. Step 2: Convert to fraction form
    20,042,156.64/30,066,979.92 = 9,113,148.96/x
  3. Step 3: Cross multiply
    20,042,156.64x = 30,066,979.92 × 9,113,148.96
  4. Step 4: Simplify right side
    20,042,156.64x = 274,004,866,788,288.94
  5. Step 5: Solve for x
    x = 274,004,866,788,288.94/20,042,156.64
  6. Step 6: Final answer
    x = 13,671,426.27

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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.