Home / 21,178,383.93-31,781,011.86-9,047,938.64

Finding the Fourth Proportional to 21,178,383.93, 31,781,011.86 and 9,047,938.64

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Solution

The fourth proportional to 21,178,383.93, 31,781,011.86 and 9,047,938.64 is: 13,577,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,383.93 : 31,781,011.86 = 9,047,938.64 : x
  2. Step 2: Convert to fraction form
    21,178,383.93/31,781,011.86 = 9,047,938.64/x
  3. Step 3: Cross multiply
    21,178,383.93x = 31,781,011.86 × 9,047,938.64
  4. Step 4: Simplify right side
    21,178,383.93x = 287,552,645,067,487.19
  5. Step 5: Solve for x
    x = 287,552,645,067,487.19/21,178,383.93
  6. Step 6: Final answer
    x = 13,577,648.13

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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.