Home / 11,818,421.40-16,306,644.42-7,172,101.20

Finding the Fourth Proportional to 11,818,421.40, 16,306,644.42 and 7,172,101.20

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Solution

The fourth proportional to 11,818,421.40, 16,306,644.42 and 7,172,101.20 is: 9,895,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,818,421.40 : 16,306,644.42 = 7,172,101.20 : x
  2. Step 2: Convert to fraction form
    11,818,421.40/16,306,644.42 = 7,172,101.20/x
  3. Step 3: Cross multiply
    11,818,421.40x = 16,306,644.42 × 7,172,101.20
  4. Step 4: Simplify right side
    11,818,421.40x = 116,952,904,012,655.31
  5. Step 5: Solve for x
    x = 116,952,904,012,655.31/11,818,421.40
  6. Step 6: Final answer
    x = 9,895,814.34

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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.