Home / 21,533,840.88-29,709,196.38-13,803,145.80

Finding the Fourth Proportional to 21,533,840.88, 29,709,196.38 and 13,803,145.80

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Solution

The fourth proportional to 21,533,840.88, 29,709,196.38 and 13,803,145.80 is: 19,043,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533,840.88 : 29,709,196.38 = 13,803,145.80 : x
  2. Step 2: Convert to fraction form
    21,533,840.88/29,709,196.38 = 13,803,145.80/x
  3. Step 3: Cross multiply
    21,533,840.88x = 29,709,196.38 × 13,803,145.80
  4. Step 4: Simplify right side
    21,533,840.88x = 410,080,369,233,972.19
  5. Step 5: Solve for x
    x = 410,080,369,233,972.19/21,533,840.88
  6. Step 6: Final answer
    x = 19,043,531.13

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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.