Home / 653,615,999.80-980,423,999.70-603,731,404.60

Finding the Fourth Proportional to 653,615,999.80, 980,423,999.70 and 603,731,404.60

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Solution

The fourth proportional to 653,615,999.80, 980,423,999.70 and 603,731,404.60 is: 905,597,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,615,999.80 : 980,423,999.70 = 603,731,404.60 : x
  2. Step 2: Convert to fraction form
    653,615,999.80/980,423,999.70 = 603,731,404.60/x
  3. Step 3: Cross multiply
    653,615,999.80x = 980,423,999.70 × 603,731,404.60
  4. Step 4: Simplify right side
    653,615,999.80x = 591,912,758,442,430,976
  5. Step 5: Solve for x
    x = 591,912,758,442,430,976/653,615,999.80
  6. Step 6: Final answer
    x = 905,597,106.90

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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.