Home / 14,078,405.20-19,428,199.33-7,639,877.20

Finding the Fourth Proportional to 14,078,405.20, 19,428,199.33 and 7,639,877.20

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Solution

The fourth proportional to 14,078,405.20, 19,428,199.33 and 7,639,877.20 is: 10,543,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078,405.20 : 19,428,199.33 = 7,639,877.20 : x
  2. Step 2: Convert to fraction form
    14,078,405.20/19,428,199.33 = 7,639,877.20/x
  3. Step 3: Cross multiply
    14,078,405.20x = 19,428,199.33 × 7,639,877.20
  4. Step 4: Simplify right side
    14,078,405.20x = 148,429,057,001,181.28
  5. Step 5: Solve for x
    x = 148,429,057,001,181.28/14,078,405.20
  6. Step 6: Final answer
    x = 10,543,030.62

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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.