Home / 290,272,182.56-400,575,633.60-159,891,990.56

Finding the Fourth Proportional to 290,272,182.56, 400,575,633.60 and 159,891,990.56

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Solution

The fourth proportional to 290,272,182.56, 400,575,633.60 and 159,891,990.56 is: 220,650,958.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,272,182.56 : 400,575,633.60 = 159,891,990.56 : x
  2. Step 2: Convert to fraction form
    290,272,182.56/400,575,633.60 = 159,891,990.56/x
  3. Step 3: Cross multiply
    290,272,182.56x = 400,575,633.60 × 159,891,990.56
  4. Step 4: Simplify right side
    290,272,182.56x = 64,048,835,426,137,224
  5. Step 5: Solve for x
    x = 64,048,835,426,137,224/290,272,182.56
  6. Step 6: Final answer
    x = 220,650,958.91

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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.