Home / 21,019,529.50-31,543,366.82-8,723,503.07

Finding the Fourth Proportional to 21,019,529.50, 31,543,366.82 and 8,723,503.07

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Solution

The fourth proportional to 21,019,529.50, 31,543,366.82 and 8,723,503.07 is: 13,091,094.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019,529.50 : 31,543,366.82 = 8,723,503.07 : x
  2. Step 2: Convert to fraction form
    21,019,529.50/31,543,366.82 = 8,723,503.07/x
  3. Step 3: Cross multiply
    21,019,529.50x = 31,543,366.82 × 8,723,503.07
  4. Step 4: Simplify right side
    21,019,529.50x = 275,168,657,209,359.41
  5. Step 5: Solve for x
    x = 275,168,657,209,359.41/21,019,529.50
  6. Step 6: Final answer
    x = 13,091,094.99

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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.