Home / 15,420,936.32-21,281,018.08-8,545,533.20

Finding the Fourth Proportional to 15,420,936.32, 21,281,018.08 and 8,545,533.20

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Solution

The fourth proportional to 15,420,936.32, 21,281,018.08 and 8,545,533.20 is: 11,792,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420,936.32 : 21,281,018.08 = 8,545,533.20 : x
  2. Step 2: Convert to fraction form
    15,420,936.32/21,281,018.08 = 8,545,533.20/x
  3. Step 3: Cross multiply
    15,420,936.32x = 21,281,018.08 × 8,545,533.20
  4. Step 4: Simplify right side
    15,420,936.32x = 181,857,646,532,440.22
  5. Step 5: Solve for x
    x = 181,857,646,532,440.22/15,420,936.32
  6. Step 6: Final answer
    x = 11,792,905.62

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1.5x scale

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.