Home / 21,254,325.42-29,323,628.76-12,884,378.80

Finding the Fourth Proportional to 21,254,325.42, 29,323,628.76 and 12,884,378.80

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Solution

The fourth proportional to 21,254,325.42, 29,323,628.76 and 12,884,378.80 is: 17,775,993.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,254,325.42 : 29,323,628.76 = 12,884,378.80 : x
  2. Step 2: Convert to fraction form
    21,254,325.42/29,323,628.76 = 12,884,378.80/x
  3. Step 3: Cross multiply
    21,254,325.42x = 29,323,628.76 × 12,884,378.80
  4. Step 4: Simplify right side
    21,254,325.42x = 377,816,740,587,796.19
  5. Step 5: Solve for x
    x = 377,816,740,587,796.19/21,254,325.42
  6. Step 6: Final answer
    x = 17,775,993.04

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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.