Home / 14,338,631.20-21,507,946.80-7,172,269.60

Finding the Fourth Proportional to 14,338,631.20, 21,507,946.80 and 7,172,269.60

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Solution

The fourth proportional to 14,338,631.20, 21,507,946.80 and 7,172,269.60 is: 10,758,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,338,631.20 : 21,507,946.80 = 7,172,269.60 : x
  2. Step 2: Convert to fraction form
    14,338,631.20/21,507,946.80 = 7,172,269.60/x
  3. Step 3: Cross multiply
    14,338,631.20x = 21,507,946.80 × 7,172,269.60
  4. Step 4: Simplify right side
    14,338,631.20x = 154,260,792,992,057.28
  5. Step 5: Solve for x
    x = 154,260,792,992,057.28/14,338,631.20
  6. Step 6: Final answer
    x = 10,758,404.40

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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.