Home / 487,639,230.90-731,458,846.35-196,645,758.90

Finding the Fourth Proportional to 487,639,230.90, 731,458,846.35 and 196,645,758.90

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Solution

The fourth proportional to 487,639,230.90, 731,458,846.35 and 196,645,758.90 is: 294,968,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,639,230.90 : 731,458,846.35 = 196,645,758.90 : x
  2. Step 2: Convert to fraction form
    487,639,230.90/731,458,846.35 = 196,645,758.90/x
  3. Step 3: Cross multiply
    487,639,230.90x = 731,458,846.35 × 196,645,758.90
  4. Step 4: Simplify right side
    487,639,230.90x = 143,838,279,944,614,256
  5. Step 5: Solve for x
    x = 143,838,279,944,614,256/487,639,230.90
  6. Step 6: Final answer
    x = 294,968,638.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.