Home / 5,426,412.70-8,139,619.05-1,640,479.90

Finding the Fourth Proportional to 5,426,412.70, 8,139,619.05 and 1,640,479.90

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Solution

The fourth proportional to 5,426,412.70, 8,139,619.05 and 1,640,479.90 is: 2,460,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426,412.70 : 8,139,619.05 = 1,640,479.90 : x
  2. Step 2: Convert to fraction form
    5,426,412.70/8,139,619.05 = 1,640,479.90/x
  3. Step 3: Cross multiply
    5,426,412.70x = 8,139,619.05 × 1,640,479.90
  4. Step 4: Simplify right side
    5,426,412.70x = 13,352,881,445,182.09
  5. Step 5: Solve for x
    x = 13,352,881,445,182.09/5,426,412.70
  6. Step 6: Final answer
    x = 2,460,719.85

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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.