Home / 12,745,222.80-19,117,852.16-9,729,709.96

Finding the Fourth Proportional to 12,745,222.80, 19,117,852.16 and 9,729,709.96

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Solution

The fourth proportional to 12,745,222.80, 19,117,852.16 and 9,729,709.96 is: 14,594,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745,222.80 : 19,117,852.16 = 9,729,709.96 : x
  2. Step 2: Convert to fraction form
    12,745,222.80/19,117,852.16 = 9,729,709.96/x
  3. Step 3: Cross multiply
    12,745,222.80x = 19,117,852.16 × 9,729,709.96
  4. Step 4: Simplify right side
    12,745,222.80x = 186,011,156,574,959.53
  5. Step 5: Solve for x
    x = 186,011,156,574,959.53/12,745,222.80
  6. Step 6: Final answer
    x = 14,594,578.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.