Home / 10,428,528.78-15,643,974.15-9,356,986.26

Finding the Fourth Proportional to 10,428,528.78, 15,643,974.15 and 9,356,986.26

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Solution

The fourth proportional to 10,428,528.78, 15,643,974.15 and 9,356,986.26 is: 14,036,539.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,428,528.78 : 15,643,974.15 = 9,356,986.26 : x
  2. Step 2: Convert to fraction form
    10,428,528.78/15,643,974.15 = 9,356,986.26/x
  3. Step 3: Cross multiply
    10,428,528.78x = 15,643,974.15 × 9,356,986.26
  4. Step 4: Simplify right side
    10,428,528.78x = 146,380,451,173,345.19
  5. Step 5: Solve for x
    x = 146,380,451,173,345.19/10,428,528.78
  6. Step 6: Final answer
    x = 14,036,539.02

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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.