Home / 21,707,914.28-29,956,980.65-11,918,992.50

Finding the Fourth Proportional to 21,707,914.28, 29,956,980.65 and 11,918,992.50

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Solution

The fourth proportional to 21,707,914.28, 29,956,980.65 and 11,918,992.50 is: 16,448,242.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,707,914.28 : 29,956,980.65 = 11,918,992.50 : x
  2. Step 2: Convert to fraction form
    21,707,914.28/29,956,980.65 = 11,918,992.50/x
  3. Step 3: Cross multiply
    21,707,914.28x = 29,956,980.65 × 11,918,992.50
  4. Step 4: Simplify right side
    21,707,914.28x = 357,057,027,630,400.19
  5. Step 5: Solve for x
    x = 357,057,027,630,400.19/21,707,914.28
  6. Step 6: Final answer
    x = 16,448,242.01

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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.