Home / 538,447,640.13-743,057,744.81-290,928,994.38

Finding the Fourth Proportional to 538,447,640.13, 743,057,744.81 and 290,928,994.38

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Solution

The fourth proportional to 538,447,640.13, 743,057,744.81 and 290,928,994.38 is: 401,482,013.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,447,640.13 : 743,057,744.81 = 290,928,994.38 : x
  2. Step 2: Convert to fraction form
    538,447,640.13/743,057,744.81 = 290,928,994.38/x
  3. Step 3: Cross multiply
    538,447,640.13x = 743,057,744.81 × 290,928,994.38
  4. Step 4: Simplify right side
    538,447,640.13x = 216,177,042,462,389,312
  5. Step 5: Solve for x
    x = 216,177,042,462,389,312/538,447,640.13
  6. Step 6: Final answer
    x = 401,482,013.01

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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.