Home / 12,947,973.21-17,868,204.59-7,146,756.52

Finding the Fourth Proportional to 12,947,973.21, 17,868,204.59 and 7,146,756.52

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Solution

The fourth proportional to 12,947,973.21, 17,868,204.59 and 7,146,756.52 is: 9,862,524.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,973.21 : 17,868,204.59 = 7,146,756.52 : x
  2. Step 2: Convert to fraction form
    12,947,973.21/17,868,204.59 = 7,146,756.52/x
  3. Step 3: Cross multiply
    12,947,973.21x = 17,868,204.59 × 7,146,756.52
  4. Step 4: Simplify right side
    12,947,973.21x = 127,699,707,573,872.14
  5. Step 5: Solve for x
    x = 127,699,707,573,872.14/12,947,973.21
  6. Step 6: Final answer
    x = 9,862,524.85

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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.