Home / 664,009,385.20-996,014,077.80-654,939,458.80

Finding the Fourth Proportional to 664,009,385.20, 996,014,077.80 and 654,939,458.80

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Solution

The fourth proportional to 664,009,385.20, 996,014,077.80 and 654,939,458.80 is: 982,409,188.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,009,385.20 : 996,014,077.80 = 654,939,458.80 : x
  2. Step 2: Convert to fraction form
    664,009,385.20/996,014,077.80 = 654,939,458.80/x
  3. Step 3: Cross multiply
    664,009,385.20x = 996,014,077.80 × 654,939,458.80
  4. Step 4: Simplify right side
    664,009,385.20x = 652,328,921,071,512,960
  5. Step 5: Solve for x
    x = 652,328,921,071,512,960/664,009,385.20
  6. Step 6: Final answer
    x = 982,409,188.20

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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.