Home / 290,548,513.40-400,953,635.01-158,386,594.37

Finding the Fourth Proportional to 290,548,513.40, 400,953,635.01 and 158,386,594.37

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Solution

The fourth proportional to 290,548,513.40, 400,953,635.01 and 158,386,594.37 is: 218,571,693.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,548,513.40 : 400,953,635.01 = 158,386,594.37 : x
  2. Step 2: Convert to fraction form
    290,548,513.40/400,953,635.01 = 158,386,594.37/x
  3. Step 3: Cross multiply
    290,548,513.40x = 400,953,635.01 × 158,386,594.37
  4. Step 4: Simplify right side
    290,548,513.40x = 63,505,680,747,501,136
  5. Step 5: Solve for x
    x = 63,505,680,747,501,136/290,548,513.40
  6. Step 6: Final answer
    x = 218,571,693.95

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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.