Home / 20,534,089.12-30,831,412.80-11,453,927.68

Finding the Fourth Proportional to 20,534,089.12, 30,831,412.80 and 11,453,927.68

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Solution

The fourth proportional to 20,534,089.12, 30,831,412.80 and 11,453,927.68 is: 17,197,781.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534,089.12 : 30,831,412.80 = 11,453,927.68 : x
  2. Step 2: Convert to fraction form
    20,534,089.12/30,831,412.80 = 11,453,927.68/x
  3. Step 3: Cross multiply
    20,534,089.12x = 30,831,412.80 × 11,453,927.68
  4. Step 4: Simplify right side
    20,534,089.12x = 353,140,772,483,426.31
  5. Step 5: Solve for x
    x = 353,140,772,483,426.31/20,534,089.12
  6. Step 6: Final answer
    x = 17,197,781.23

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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.