Home / 750,144,017.25-1,035,198,743.81-420,119,156.25

Finding the Fourth Proportional to 750,144,017.25, 1,035,198,743.81 and 420,119,156.25

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Solution

The fourth proportional to 750,144,017.25, 1,035,198,743.81 and 420,119,156.25 is: 579,764,435.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,144,017.25 : 1,035,198,743.81 = 420,119,156.25 : x
  2. Step 2: Convert to fraction form
    750,144,017.25/1,035,198,743.81 = 420,119,156.25/x
  3. Step 3: Cross multiply
    750,144,017.25x = 1,035,198,743.81 × 420,119,156.25
  4. Step 4: Simplify right side
    750,144,017.25x = 434,906,822,798,416,512
  5. Step 5: Solve for x
    x = 434,906,822,798,416,512/750,144,017.25
  6. Step 6: Final answer
    x = 579,764,435.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.