Home / 12,586,665-18,890,086.55-6,523,130.28

Finding the Fourth Proportional to 12,586,665, 18,890,086.55 and 6,523,130.28

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Solution

The fourth proportional to 12,586,665, 18,890,086.55 and 6,523,130.28 is: 9,789,924.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,586,665 : 18,890,086.55 = 6,523,130.28 : x
  2. Step 2: Convert to fraction form
    12,586,665/18,890,086.55 = 6,523,130.28/x
  3. Step 3: Cross multiply
    12,586,665x = 18,890,086.55 × 6,523,130.28
  4. Step 4: Simplify right side
    12,586,665x = 123,222,495,533,510.09
  5. Step 5: Solve for x
    x = 123,222,495,533,510.09/12,586,665
  6. Step 6: Final answer
    x = 9,789,924.14

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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.