Home / 289,291,676.96-399,225,749.40-170,240,589.16

Finding the Fourth Proportional to 289,291,676.96, 399,225,749.40 and 170,240,589.16

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Solution

The fourth proportional to 289,291,676.96, 399,225,749.40 and 170,240,589.16 is: 234,933,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,291,676.96 : 399,225,749.40 = 170,240,589.16 : x
  2. Step 2: Convert to fraction form
    289,291,676.96/399,225,749.40 = 170,240,589.16/x
  3. Step 3: Cross multiply
    289,291,676.96x = 399,225,749.40 × 170,240,589.16
  4. Step 4: Simplify right side
    289,291,676.96x = 67,964,426,785,698,512
  5. Step 5: Solve for x
    x = 67,964,426,785,698,512/289,291,676.96
  6. Step 6: Final answer
    x = 234,933,916.87

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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.