Home / 20,759,748.80-31,139,623.20-19,584,017.60

Finding the Fourth Proportional to 20,759,748.80, 31,139,623.20 and 19,584,017.60

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Solution

The fourth proportional to 20,759,748.80, 31,139,623.20 and 19,584,017.60 is: 29,376,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759,748.80 : 31,139,623.20 = 19,584,017.60 : x
  2. Step 2: Convert to fraction form
    20,759,748.80/31,139,623.20 = 19,584,017.60/x
  3. Step 3: Cross multiply
    20,759,748.80x = 31,139,623.20 × 19,584,017.60
  4. Step 4: Simplify right side
    20,759,748.80x = 609,838,928,806,168.38
  5. Step 5: Solve for x
    x = 609,838,928,806,168.38/20,759,748.80
  6. Step 6: Final answer
    x = 29,376,026.40

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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.