Home / 9,989,857.74-13,786,047-5,406,179.52

Finding the Fourth Proportional to 9,989,857.74, 13,786,047 and 5,406,179.52

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Solution

The fourth proportional to 9,989,857.74, 13,786,047 and 5,406,179.52 is: 7,460,551.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989,857.74 : 13,786,047 = 5,406,179.52 : x
  2. Step 2: Convert to fraction form
    9,989,857.74/13,786,047 = 5,406,179.52/x
  3. Step 3: Cross multiply
    9,989,857.74x = 13,786,047 × 5,406,179.52
  4. Step 4: Simplify right side
    9,989,857.74x = 74,529,844,953,157.44
  5. Step 5: Solve for x
    x = 74,529,844,953,157.44/9,989,857.74
  6. Step 6: Final answer
    x = 7,460,551.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.