Home / 61,431,378.90-92,147,412.81-20,490,705.64

Finding the Fourth Proportional to 61,431,378.90, 92,147,412.81 and 20,490,705.64

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Solution

The fourth proportional to 61,431,378.90, 92,147,412.81 and 20,490,705.64 is: 30,736,173.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,431,378.90 : 92,147,412.81 = 20,490,705.64 : x
  2. Step 2: Convert to fraction form
    61,431,378.90/92,147,412.81 = 20,490,705.64/x
  3. Step 3: Cross multiply
    61,431,378.90x = 92,147,412.81 × 20,490,705.64
  4. Step 4: Simplify right side
    61,431,378.90x = 1,888,165,511,569,299.50
  5. Step 5: Solve for x
    x = 1,888,165,511,569,299.50/61,431,378.90
  6. Step 6: Final answer
    x = 30,736,173.36

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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.