Home / 13,191,864.63-18,209,857.30-12,827,827.54

Finding the Fourth Proportional to 13,191,864.63, 18,209,857.30 and 12,827,827.54

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Solution

The fourth proportional to 13,191,864.63, 18,209,857.30 and 12,827,827.54 is: 17,707,345.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,864.63 : 18,209,857.30 = 12,827,827.54 : x
  2. Step 2: Convert to fraction form
    13,191,864.63/18,209,857.30 = 12,827,827.54/x
  3. Step 3: Cross multiply
    13,191,864.63x = 18,209,857.30 × 12,827,827.54
  4. Step 4: Simplify right side
    13,191,864.63x = 233,592,909,035,259.34
  5. Step 5: Solve for x
    x = 233,592,909,035,259.34/13,191,864.63
  6. Step 6: Final answer
    x = 17,707,345.83

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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.