Home / 18,947,232,005.10-28,420,848,007.65-5,160,943,877.10

Finding the Fourth Proportional to 18,947,232,005.10, 28,420,848,007.65 and 5,160,943,877.10

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Solution

The fourth proportional to 18,947,232,005.10, 28,420,848,007.65 and 5,160,943,877.10 is: 7,741,415,815.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,947,232,005.10 : 28,420,848,007.65 = 5,160,943,877.10 : x
  2. Step 2: Convert to fraction form
    18,947,232,005.10/28,420,848,007.65 = 5,160,943,877.10/x
  3. Step 3: Cross multiply
    18,947,232,005.10x = 28,420,848,007.65 × 5,160,943,877.10
  4. Step 4: Simplify right side
    18,947,232,005.10x = 146,678,401,507,071,016,960
  5. Step 5: Solve for x
    x = 146,678,401,507,071,016,960/18,947,232,005.10
  6. Step 6: Final answer
    x = 7,741,415,815.65

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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.