Home / 12,841,178.31-17,720,821.71-7,039,835.60

Finding the Fourth Proportional to 12,841,178.31, 17,720,821.71 and 7,039,835.60

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Solution

The fourth proportional to 12,841,178.31, 17,720,821.71 and 7,039,835.60 is: 9,714,970.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,841,178.31 : 17,720,821.71 = 7,039,835.60 : x
  2. Step 2: Convert to fraction form
    12,841,178.31/17,720,821.71 = 7,039,835.60/x
  3. Step 3: Cross multiply
    12,841,178.31x = 17,720,821.71 × 7,039,835.60
  4. Step 4: Simplify right side
    12,841,178.31x = 124,751,671,446,706.77
  5. Step 5: Solve for x
    x = 124,751,671,446,706.77/12,841,178.31
  6. Step 6: Final answer
    x = 9,714,970.73

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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.