Home / 20,298,125.80-30,447,188.70-5,152,057.30

Finding the Fourth Proportional to 20,298,125.80, 30,447,188.70 and 5,152,057.30

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Solution

The fourth proportional to 20,298,125.80, 30,447,188.70 and 5,152,057.30 is: 7,728,085.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298,125.80 : 30,447,188.70 = 5,152,057.30 : x
  2. Step 2: Convert to fraction form
    20,298,125.80/30,447,188.70 = 5,152,057.30/x
  3. Step 3: Cross multiply
    20,298,125.80x = 30,447,188.70 × 5,152,057.30
  4. Step 4: Simplify right side
    20,298,125.80x = 156,865,660,806,312.50
  5. Step 5: Solve for x
    x = 156,865,660,806,312.50/20,298,125.80
  6. Step 6: Final answer
    x = 7,728,085.95

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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.