Home / 5,432,811.40-8,149,217.10-1,645,802.20

Finding the Fourth Proportional to 5,432,811.40, 8,149,217.10 and 1,645,802.20

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Solution

The fourth proportional to 5,432,811.40, 8,149,217.10 and 1,645,802.20 is: 2,468,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,432,811.40 : 8,149,217.10 = 1,645,802.20 : x
  2. Step 2: Convert to fraction form
    5,432,811.40/8,149,217.10 = 1,645,802.20/x
  3. Step 3: Cross multiply
    5,432,811.40x = 8,149,217.10 × 1,645,802.20
  4. Step 4: Simplify right side
    5,432,811.40x = 13,411,999,431,457.62
  5. Step 5: Solve for x
    x = 13,411,999,431,457.62/5,432,811.40
  6. Step 6: Final answer
    x = 2,468,703.30

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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.