Home / 18,688,625.70-28,032,938.55-18,436,683.30

Finding the Fourth Proportional to 18,688,625.70, 28,032,938.55 and 18,436,683.30

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Solution

The fourth proportional to 18,688,625.70, 28,032,938.55 and 18,436,683.30 is: 27,655,024.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688,625.70 : 28,032,938.55 = 18,436,683.30 : x
  2. Step 2: Convert to fraction form
    18,688,625.70/28,032,938.55 = 18,436,683.30/x
  3. Step 3: Cross multiply
    18,688,625.70x = 28,032,938.55 × 18,436,683.30
  4. Step 4: Simplify right side
    18,688,625.70x = 516,834,410,014,711.25
  5. Step 5: Solve for x
    x = 516,834,410,014,711.25/18,688,625.70
  6. Step 6: Final answer
    x = 27,655,024.95

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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.