Home / 289,250,091.12-399,189,743.31-163,824,599.22

Finding the Fourth Proportional to 289,250,091.12, 399,189,743.31 and 163,824,599.22

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Solution

The fourth proportional to 289,250,091.12, 399,189,743.31 and 163,824,599.22 is: 226,091,889.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,250,091.12 : 399,189,743.31 = 163,824,599.22 : x
  2. Step 2: Convert to fraction form
    289,250,091.12/399,189,743.31 = 163,824,599.22/x
  3. Step 3: Cross multiply
    289,250,091.12x = 399,189,743.31 × 163,824,599.22
  4. Step 4: Simplify right side
    289,250,091.12x = 65,397,099,710,495,424
  5. Step 5: Solve for x
    x = 65,397,099,710,495,424/289,250,091.12
  6. Step 6: Final answer
    x = 226,091,889.75

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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.