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Finding the Fourth Proportional to 3,118,287.30, 4,374,000.30 and 3,118,287.30

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Solution

The fourth proportional to 3,118,287.30, 4,374,000.30 and 3,118,287.30 is: 4,374,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,287.30 : 4,374,000.30 = 3,118,287.30 : x
  2. Step 2: Convert to fraction form
    3,118,287.30/4,374,000.30 = 3,118,287.30/x
  3. Step 3: Cross multiply
    3,118,287.30x = 4,374,000.30 × 3,118,287.30
  4. Step 4: Simplify right side
    3,118,287.30x = 13,639,389,585,686.19
  5. Step 5: Solve for x
    x = 13,639,389,585,686.19/3,118,287.30
  6. Step 6: Final answer
    x = 4,374,000.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.