Home / 5,315,821.20-7,973,731.80-5,284,328.40

Finding the Fourth Proportional to 5,315,821.20, 7,973,731.80 and 5,284,328.40

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Solution

The fourth proportional to 5,315,821.20, 7,973,731.80 and 5,284,328.40 is: 7,926,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315,821.20 : 7,973,731.80 = 5,284,328.40 : x
  2. Step 2: Convert to fraction form
    5,315,821.20/7,973,731.80 = 5,284,328.40/x
  3. Step 3: Cross multiply
    5,315,821.20x = 7,973,731.80 × 5,284,328.40
  4. Step 4: Simplify right side
    5,315,821.20x = 42,135,817,404,723.12
  5. Step 5: Solve for x
    x = 42,135,817,404,723.12/5,315,821.20
  6. Step 6: Final answer
    x = 7,926,492.60

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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.