Home / 18,688,232.40-28,032,348.60-12,948,669.60

Finding the Fourth Proportional to 18,688,232.40, 28,032,348.60 and 12,948,669.60

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Solution

The fourth proportional to 18,688,232.40, 28,032,348.60 and 12,948,669.60 is: 19,423,004.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688,232.40 : 28,032,348.60 = 12,948,669.60 : x
  2. Step 2: Convert to fraction form
    18,688,232.40/28,032,348.60 = 12,948,669.60/x
  3. Step 3: Cross multiply
    18,688,232.40x = 28,032,348.60 × 12,948,669.60
  4. Step 4: Simplify right side
    18,688,232.40x = 362,981,620,133,422.56
  5. Step 5: Solve for x
    x = 362,981,620,133,422.56/18,688,232.40
  6. Step 6: Final answer
    x = 19,423,004.40

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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.