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Finding the Fourth Proportional to 65,367,880.40, 97,874,873.40 and 51,212,104.40

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Solution

The fourth proportional to 65,367,880.40, 97,874,873.40 and 51,212,104.40 is: 76,679,528.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,367,880.40 : 97,874,873.40 = 51,212,104.40 : x
  2. Step 2: Convert to fraction form
    65,367,880.40/97,874,873.40 = 51,212,104.40/x
  3. Step 3: Cross multiply
    65,367,880.40x = 97,874,873.40 × 51,212,104.40
  4. Step 4: Simplify right side
    65,367,880.40x = 5,012,378,234,697,583
  5. Step 5: Solve for x
    x = 5,012,378,234,697,583/65,367,880.40
  6. Step 6: Final answer
    x = 76,679,528.29

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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.