Home / 20,805,851.10-31,208,776.65-19,546,139.10

Finding the Fourth Proportional to 20,805,851.10, 31,208,776.65 and 19,546,139.10

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Solution

The fourth proportional to 20,805,851.10, 31,208,776.65 and 19,546,139.10 is: 29,319,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,805,851.10 : 31,208,776.65 = 19,546,139.10 : x
  2. Step 2: Convert to fraction form
    20,805,851.10/31,208,776.65 = 19,546,139.10/x
  3. Step 3: Cross multiply
    20,805,851.10x = 31,208,776.65 × 19,546,139.10
  4. Step 4: Simplify right side
    20,805,851.10x = 610,011,089,541,732
  5. Step 5: Solve for x
    x = 610,011,089,541,732/20,805,851.10
  6. Step 6: Final answer
    x = 29,319,208.65

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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.