Home / 21,685,398.68-29,926,249.44-11,896,342.76

Finding the Fourth Proportional to 21,685,398.68, 29,926,249.44 and 11,896,342.76

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Solution

The fourth proportional to 21,685,398.68, 29,926,249.44 and 11,896,342.76 is: 16,417,172.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,685,398.68 : 29,926,249.44 = 11,896,342.76 : x
  2. Step 2: Convert to fraction form
    21,685,398.68/29,926,249.44 = 11,896,342.76/x
  3. Step 3: Cross multiply
    21,685,398.68x = 29,926,249.44 × 11,896,342.76
  4. Step 4: Simplify right side
    21,685,398.68x = 356,012,920,859,498.06
  5. Step 5: Solve for x
    x = 356,012,920,859,498.06/21,685,398.68
  6. Step 6: Final answer
    x = 16,417,172.04

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Double scale
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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.