Home / 21,908,820.32-30,231,538.02-12,619,411.54

Finding the Fourth Proportional to 21,908,820.32, 30,231,538.02 and 12,619,411.54

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Solution

The fourth proportional to 21,908,820.32, 30,231,538.02 and 12,619,411.54 is: 17,413,270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,908,820.32 : 30,231,538.02 = 12,619,411.54 : x
  2. Step 2: Convert to fraction form
    21,908,820.32/30,231,538.02 = 12,619,411.54/x
  3. Step 3: Cross multiply
    21,908,820.32x = 30,231,538.02 × 12,619,411.54
  4. Step 4: Simplify right side
    21,908,820.32x = 381,504,219,761,536.69
  5. Step 5: Solve for x
    x = 381,504,219,761,536.69/21,908,820.32
  6. Step 6: Final answer
    x = 17,413,270.74

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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.