Home / 538,126,527.53-742,614,617.33-290,607,881.78

Finding the Fourth Proportional to 538,126,527.53, 742,614,617.33 and 290,607,881.78

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Solution

The fourth proportional to 538,126,527.53, 742,614,617.33 and 290,607,881.78 is: 401,038,881.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,126,527.53 : 742,614,617.33 = 290,607,881.78 : x
  2. Step 2: Convert to fraction form
    538,126,527.53/742,614,617.33 = 290,607,881.78/x
  3. Step 3: Cross multiply
    538,126,527.53x = 742,614,617.33 × 290,607,881.78
  4. Step 4: Simplify right side
    538,126,527.53x = 215,809,660,915,970,464
  5. Step 5: Solve for x
    x = 215,809,660,915,970,464/538,126,527.53
  6. Step 6: Final answer
    x = 401,038,881.89

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1.5x scale

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.