Home / 398,540,527.65-550,095,319.58-231,330,658.68

Finding the Fourth Proportional to 398,540,527.65, 550,095,319.58 and 231,330,658.68

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Solution

The fourth proportional to 398,540,527.65, 550,095,319.58 and 231,330,658.68 is: 319,299,804.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,540,527.65 : 550,095,319.58 = 231,330,658.68 : x
  2. Step 2: Convert to fraction form
    398,540,527.65/550,095,319.58 = 231,330,658.68/x
  3. Step 3: Cross multiply
    398,540,527.65x = 550,095,319.58 × 231,330,658.68
  4. Step 4: Simplify right side
    398,540,527.65x = 127,253,912,614,069,856
  5. Step 5: Solve for x
    x = 127,253,912,614,069,856/398,540,527.65
  6. Step 6: Final answer
    x = 319,299,804.63

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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.