Home / 18,671,048.40-28,006,572.60-7,307,720.40

Finding the Fourth Proportional to 18,671,048.40, 28,006,572.60 and 7,307,720.40

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Solution

The fourth proportional to 18,671,048.40, 28,006,572.60 and 7,307,720.40 is: 10,961,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,671,048.40 : 28,006,572.60 = 7,307,720.40 : x
  2. Step 2: Convert to fraction form
    18,671,048.40/28,006,572.60 = 7,307,720.40/x
  3. Step 3: Cross multiply
    18,671,048.40x = 28,006,572.60 × 7,307,720.40
  4. Step 4: Simplify right side
    18,671,048.40x = 204,664,201,923,101.06
  5. Step 5: Solve for x
    x = 204,664,201,923,101.06/18,671,048.40
  6. Step 6: Final answer
    x = 10,961,580.60

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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.