Home / 28,653,709.80-42,980,564.70-25,518,426.60

Finding the Fourth Proportional to 28,653,709.80, 42,980,564.70 and 25,518,426.60

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Solution

The fourth proportional to 28,653,709.80, 42,980,564.70 and 25,518,426.60 is: 38,277,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653,709.80 : 42,980,564.70 = 25,518,426.60 : x
  2. Step 2: Convert to fraction form
    28,653,709.80/42,980,564.70 = 25,518,426.60/x
  3. Step 3: Cross multiply
    28,653,709.80x = 42,980,564.70 × 25,518,426.60
  4. Step 4: Simplify right side
    28,653,709.80x = 1,096,796,385,523,501.12
  5. Step 5: Solve for x
    x = 1,096,796,385,523,501.12/28,653,709.80
  6. Step 6: Final answer
    x = 38,277,639.90

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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.