Home / 18,681,168.78-25,779,428.01-10,951,359.30

Finding the Fourth Proportional to 18,681,168.78, 25,779,428.01 and 10,951,359.30

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Solution

The fourth proportional to 18,681,168.78, 25,779,428.01 and 10,951,359.30 is: 15,112,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,168.78 : 25,779,428.01 = 10,951,359.30 : x
  2. Step 2: Convert to fraction form
    18,681,168.78/25,779,428.01 = 10,951,359.30/x
  3. Step 3: Cross multiply
    18,681,168.78x = 25,779,428.01 × 10,951,359.30
  4. Step 4: Simplify right side
    18,681,168.78x = 282,319,778,685,994
  5. Step 5: Solve for x
    x = 282,319,778,685,994/18,681,168.78
  6. Step 6: Final answer
    x = 15,112,532.95

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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.