Home / 398,235,009.24-549,562,349.70-231,005,091.96

Finding the Fourth Proportional to 398,235,009.24, 549,562,349.70 and 231,005,091.96

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Solution

The fourth proportional to 398,235,009.24, 549,562,349.70 and 231,005,091.96 is: 318,785,888.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,235,009.24 : 549,562,349.70 = 231,005,091.96 : x
  2. Step 2: Convert to fraction form
    398,235,009.24/549,562,349.70 = 231,005,091.96/x
  3. Step 3: Cross multiply
    398,235,009.24x = 549,562,349.70 × 231,005,091.96
  4. Step 4: Simplify right side
    398,235,009.24x = 126,951,701,130,202,192
  5. Step 5: Solve for x
    x = 126,951,701,130,202,192/398,235,009.24
  6. Step 6: Final answer
    x = 318,785,888.19

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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.