Home / 538,126,528.53-742,614,618.71-290,607,882.78

Finding the Fourth Proportional to 538,126,528.53, 742,614,618.71 and 290,607,882.78

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Solution

The fourth proportional to 538,126,528.53, 742,614,618.71 and 290,607,882.78 is: 401,038,883.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,126,528.53 : 742,614,618.71 = 290,607,882.78 : x
  2. Step 2: Convert to fraction form
    538,126,528.53/742,614,618.71 = 290,607,882.78/x
  3. Step 3: Cross multiply
    538,126,528.53x = 742,614,618.71 × 290,607,882.78
  4. Step 4: Simplify right side
    538,126,528.53x = 215,809,662,064,790,080
  5. Step 5: Solve for x
    x = 215,809,662,064,790,080/538,126,528.53
  6. Step 6: Final answer
    x = 401,038,883.28

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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.