Home / 398,235,035.74-549,562,386.26-231,005,118.46

Finding the Fourth Proportional to 398,235,035.74, 549,562,386.26 and 231,005,118.46

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Solution

The fourth proportional to 398,235,035.74, 549,562,386.26 and 231,005,118.46 is: 318,785,924.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,235,035.74 : 549,562,386.26 = 231,005,118.46 : x
  2. Step 2: Convert to fraction form
    398,235,035.74/549,562,386.26 = 231,005,118.46/x
  3. Step 3: Cross multiply
    398,235,035.74x = 549,562,386.26 × 231,005,118.46
  4. Step 4: Simplify right side
    398,235,035.74x = 126,951,724,139,151,584
  5. Step 5: Solve for x
    x = 126,951,724,139,151,584/398,235,035.74
  6. Step 6: Final answer
    x = 318,785,924.76

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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.