Home / 18,903,421.80-28,355,132.70-15,754,141.80

Finding the Fourth Proportional to 18,903,421.80, 28,355,132.70 and 15,754,141.80

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Solution

The fourth proportional to 18,903,421.80, 28,355,132.70 and 15,754,141.80 is: 23,631,212.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903,421.80 : 28,355,132.70 = 15,754,141.80 : x
  2. Step 2: Convert to fraction form
    18,903,421.80/28,355,132.70 = 15,754,141.80/x
  3. Step 3: Cross multiply
    18,903,421.80x = 28,355,132.70 × 15,754,141.80
  4. Step 4: Simplify right side
    18,903,421.80x = 446,710,781,313,616.88
  5. Step 5: Solve for x
    x = 446,710,781,313,616.88/18,903,421.80
  6. Step 6: Final answer
    x = 23,631,212.70

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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.