Home / 20,142,449.64-30,192,160.32-11,487,917.16

Finding the Fourth Proportional to 20,142,449.64, 30,192,160.32 and 11,487,917.16

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Solution

The fourth proportional to 20,142,449.64, 30,192,160.32 and 11,487,917.16 is: 17,219,605.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,449.64 : 30,192,160.32 = 11,487,917.16 : x
  2. Step 2: Convert to fraction form
    20,142,449.64/30,192,160.32 = 11,487,917.16/x
  3. Step 3: Cross multiply
    20,142,449.64x = 30,192,160.32 × 11,487,917.16
  4. Step 4: Simplify right side
    20,142,449.64x = 346,845,036,637,599.12
  5. Step 5: Solve for x
    x = 346,845,036,637,599.12/20,142,449.64
  6. Step 6: Final answer
    x = 17,219,605.50

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1.5x scale

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.