Home / 42,755,310.84-64,155,015.54-20,038,515.96

Finding the Fourth Proportional to 42,755,310.84, 64,155,015.54 and 20,038,515.96

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Solution

The fourth proportional to 42,755,310.84, 64,155,015.54 and 20,038,515.96 is: 30,068,107.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,755,310.84 : 64,155,015.54 = 20,038,515.96 : x
  2. Step 2: Convert to fraction form
    42,755,310.84/64,155,015.54 = 20,038,515.96/x
  3. Step 3: Cross multiply
    42,755,310.84x = 64,155,015.54 × 20,038,515.96
  4. Step 4: Simplify right side
    42,755,310.84x = 1,285,571,302,812,338
  5. Step 5: Solve for x
    x = 1,285,571,302,812,338/42,755,310.84
  6. Step 6: Final answer
    x = 30,068,107.97

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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.