Home / 15,871,656.12-21,904,911.54-9,345,892.80

Finding the Fourth Proportional to 15,871,656.12, 21,904,911.54 and 9,345,892.80

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Solution

The fourth proportional to 15,871,656.12, 21,904,911.54 and 9,345,892.80 is: 12,898,525.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871,656.12 : 21,904,911.54 = 9,345,892.80 : x
  2. Step 2: Convert to fraction form
    15,871,656.12/21,904,911.54 = 9,345,892.80/x
  3. Step 3: Cross multiply
    15,871,656.12x = 21,904,911.54 × 9,345,892.80
  4. Step 4: Simplify right side
    15,871,656.12x = 204,720,955,046,322.91
  5. Step 5: Solve for x
    x = 204,720,955,046,322.91/15,871,656.12
  6. Step 6: Final answer
    x = 12,898,525.11

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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.