Home / 5,426,487.20-8,140,897.20-1,640,352.80

Finding the Fourth Proportional to 5,426,487.20, 8,140,897.20 and 1,640,352.80

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Solution

The fourth proportional to 5,426,487.20, 8,140,897.20 and 1,640,352.80 is: 2,460,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426,487.20 : 8,140,897.20 = 1,640,352.80 : x
  2. Step 2: Convert to fraction form
    5,426,487.20/8,140,897.20 = 1,640,352.80/x
  3. Step 3: Cross multiply
    5,426,487.20x = 8,140,897.20 × 1,640,352.80
  4. Step 4: Simplify right side
    5,426,487.20x = 13,353,943,516,532.16
  5. Step 5: Solve for x
    x = 13,353,943,516,532.16/5,426,487.20
  6. Step 6: Final answer
    x = 2,460,881.79

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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.