Home / 1,813,188,969-2,720,338,518.68-928,500,720.96

Finding the Fourth Proportional to 1,813,188,969, 2,720,338,518.68 and 928,500,720.96

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Solution

The fourth proportional to 1,813,188,969, 2,720,338,518.68 and 928,500,720.96 is: 1,393,035,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813,188,969 : 2,720,338,518.68 = 928,500,720.96 : x
  2. Step 2: Convert to fraction form
    1,813,188,969/2,720,338,518.68 = 928,500,720.96/x
  3. Step 3: Cross multiply
    1,813,188,969x = 2,720,338,518.68 × 928,500,720.96
  4. Step 4: Simplify right side
    1,813,188,969x = 2,525,836,275,849,638,400
  5. Step 5: Solve for x
    x = 2,525,836,275,849,638,400/1,813,188,969
  6. Step 6: Final answer
    x = 1,393,035,320.11

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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.