Home / 21,178,384.93-31,781,013.36-9,047,939.64

Finding the Fourth Proportional to 21,178,384.93, 31,781,013.36 and 9,047,939.64

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Solution

The fourth proportional to 21,178,384.93, 31,781,013.36 and 9,047,939.64 is: 13,577,649.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,384.93 : 31,781,013.36 = 9,047,939.64 : x
  2. Step 2: Convert to fraction form
    21,178,384.93/31,781,013.36 = 9,047,939.64/x
  3. Step 3: Cross multiply
    21,178,384.93x = 31,781,013.36 × 9,047,939.64
  4. Step 4: Simplify right side
    21,178,384.93x = 287,552,690,579,313.62
  5. Step 5: Solve for x
    x = 287,552,690,579,313.62/21,178,384.93
  6. Step 6: Final answer
    x = 13,577,649.64

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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.