Home / 9,990,039.96-13,786,255.08-5,406,362.28

Finding the Fourth Proportional to 9,990,039.96, 13,786,255.08 and 5,406,362.28

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Solution

The fourth proportional to 9,990,039.96, 13,786,255.08 and 5,406,362.28 is: 7,460,779.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990,039.96 : 13,786,255.08 = 5,406,362.28 : x
  2. Step 2: Convert to fraction form
    9,990,039.96/13,786,255.08 = 5,406,362.28/x
  3. Step 3: Cross multiply
    9,990,039.96x = 13,786,255.08 × 5,406,362.28
  4. Step 4: Simplify right side
    9,990,039.96x = 74,533,489,446,970.39
  5. Step 5: Solve for x
    x = 74,533,489,446,970.39/9,990,039.96
  6. Step 6: Final answer
    x = 7,460,779.91

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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.