Home / 12,615,402.15-18,853,984.31-9,210,866.40

Finding the Fourth Proportional to 12,615,402.15, 18,853,984.31 and 9,210,866.40

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Solution

The fourth proportional to 12,615,402.15, 18,853,984.31 and 9,210,866.40 is: 13,765,833.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615,402.15 : 18,853,984.31 = 9,210,866.40 : x
  2. Step 2: Convert to fraction form
    12,615,402.15/18,853,984.31 = 9,210,866.40/x
  3. Step 3: Cross multiply
    12,615,402.15x = 18,853,984.31 × 9,210,866.40
  4. Step 4: Simplify right side
    12,615,402.15x = 173,661,530,541,051.84
  5. Step 5: Solve for x
    x = 173,661,530,541,051.84/12,615,402.15
  6. Step 6: Final answer
    x = 13,765,833.90

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.