Home / 290,366,341.56-400,700,505.78-158,208,424.20

Finding the Fourth Proportional to 290,366,341.56, 400,700,505.78 and 158,208,424.20

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Solution

The fourth proportional to 290,366,341.56, 400,700,505.78 and 158,208,424.20 is: 218,324,876.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,366,341.56 : 400,700,505.78 = 158,208,424.20 : x
  2. Step 2: Convert to fraction form
    290,366,341.56/400,700,505.78 = 158,208,424.20/x
  3. Step 3: Cross multiply
    290,366,341.56x = 400,700,505.78 × 158,208,424.20
  4. Step 4: Simplify right side
    290,366,341.56x = 63,394,195,595,596,784
  5. Step 5: Solve for x
    x = 63,394,195,595,596,784/290,366,341.56
  6. Step 6: Final answer
    x = 218,324,876.28

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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.