Home / 465,196,835.30-641,975,878.41-256,360,470.98

Finding the Fourth Proportional to 465,196,835.30, 641,975,878.41 and 256,360,470.98

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Solution

The fourth proportional to 465,196,835.30, 641,975,878.41 and 256,360,470.98 is: 353,779,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,196,835.30 : 641,975,878.41 = 256,360,470.98 : x
  2. Step 2: Convert to fraction form
    465,196,835.30/641,975,878.41 = 256,360,470.98/x
  3. Step 3: Cross multiply
    465,196,835.30x = 641,975,878.41 × 256,360,470.98
  4. Step 4: Simplify right side
    465,196,835.30x = 164,577,238,546,986,784
  5. Step 5: Solve for x
    x = 164,577,238,546,986,784/465,196,835.30
  6. Step 6: Final answer
    x = 353,779,789.67

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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.