Home / 5,427,420.90-8,142,312.15-1,640,804.90

Finding the Fourth Proportional to 5,427,420.90, 8,142,312.15 and 1,640,804.90

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Solution

The fourth proportional to 5,427,420.90, 8,142,312.15 and 1,640,804.90 is: 2,461,564.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427,420.90 : 8,142,312.15 = 1,640,804.90 : x
  2. Step 2: Convert to fraction form
    5,427,420.90/8,142,312.15 = 1,640,804.90/x
  3. Step 3: Cross multiply
    5,427,420.90x = 8,142,312.15 × 1,640,804.90
  4. Step 4: Simplify right side
    5,427,420.90x = 13,359,945,673,049.54
  5. Step 5: Solve for x
    x = 13,359,945,673,049.54/5,427,420.90
  6. Step 6: Final answer
    x = 2,461,564.33

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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.