Home / 21,619,803.48-29,834,437.77-12,922,771.11

Finding the Fourth Proportional to 21,619,803.48, 29,834,437.77 and 12,922,771.11

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Solution

The fourth proportional to 21,619,803.48, 29,834,437.77 and 12,922,771.11 is: 17,832,891.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,619,803.48 : 29,834,437.77 = 12,922,771.11 : x
  2. Step 2: Convert to fraction form
    21,619,803.48/29,834,437.77 = 12,922,771.11/x
  3. Step 3: Cross multiply
    21,619,803.48x = 29,834,437.77 × 12,922,771.11
  4. Step 4: Simplify right side
    21,619,803.48x = 385,543,610,497,248.81
  5. Step 5: Solve for x
    x = 385,543,610,497,248.81/21,619,803.48
  6. Step 6: Final answer
    x = 17,832,891.54

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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.