Home / 20,790,170.58-31,163,264.81-7,830,713.89

Finding the Fourth Proportional to 20,790,170.58, 31,163,264.81 and 7,830,713.89

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Solution

The fourth proportional to 20,790,170.58, 31,163,264.81 and 7,830,713.89 is: 11,737,787.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,170.58 : 31,163,264.81 = 7,830,713.89 : x
  2. Step 2: Convert to fraction form
    20,790,170.58/31,163,264.81 = 7,830,713.89/x
  3. Step 3: Cross multiply
    20,790,170.58x = 31,163,264.81 × 7,830,713.89
  4. Step 4: Simplify right side
    20,790,170.58x = 244,030,610,605,415.19
  5. Step 5: Solve for x
    x = 244,030,610,605,415.19/20,790,170.58
  6. Step 6: Final answer
    x = 11,737,787.80

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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.