Home / 12,942,009.63-17,860,069.08-7,141,006.71

Finding the Fourth Proportional to 12,942,009.63, 17,860,069.08 and 7,141,006.71

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Solution

The fourth proportional to 12,942,009.63, 17,860,069.08 and 7,141,006.71 is: 9,854,642.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,009.63 : 17,860,069.08 = 7,141,006.71 : x
  2. Step 2: Convert to fraction form
    12,942,009.63/17,860,069.08 = 7,141,006.71/x
  3. Step 3: Cross multiply
    12,942,009.63x = 17,860,069.08 × 7,141,006.71
  4. Step 4: Simplify right side
    12,942,009.63x = 127,538,873,141,343.52
  5. Step 5: Solve for x
    x = 127,538,873,141,343.52/12,942,009.63
  6. Step 6: Final answer
    x = 9,854,642.11

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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.