Home / 20,459,317.86-28,233,800.64-11,291,895

Finding the Fourth Proportional to 20,459,317.86, 28,233,800.64 and 11,291,895

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Solution

The fourth proportional to 20,459,317.86, 28,233,800.64 and 11,291,895 is: 15,582,783.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,459,317.86 : 28,233,800.64 = 11,291,895 : x
  2. Step 2: Convert to fraction form
    20,459,317.86/28,233,800.64 = 11,291,895/x
  3. Step 3: Cross multiply
    20,459,317.86x = 28,233,800.64 × 11,291,895
  4. Step 4: Simplify right side
    20,459,317.86x = 318,813,112,277,812.81
  5. Step 5: Solve for x
    x = 318,813,112,277,812.81/20,459,317.86
  6. Step 6: Final answer
    x = 15,582,783.08

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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.