Home / 5,426,475.20-8,139,712.80-1,640,542.40

Finding the Fourth Proportional to 5,426,475.20, 8,139,712.80 and 1,640,542.40

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Solution

The fourth proportional to 5,426,475.20, 8,139,712.80 and 1,640,542.40 is: 2,460,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426,475.20 : 8,139,712.80 = 1,640,542.40 : x
  2. Step 2: Convert to fraction form
    5,426,475.20/8,139,712.80 = 1,640,542.40/x
  3. Step 3: Cross multiply
    5,426,475.20x = 8,139,712.80 × 1,640,542.40
  4. Step 4: Simplify right side
    5,426,475.20x = 13,353,543,972,222.72
  5. Step 5: Solve for x
    x = 13,353,543,972,222.72/5,426,475.20
  6. Step 6: Final answer
    x = 2,460,813.60

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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.