Home / 754,515,355.60-1,129,505,551.80-447,649,512.40

Finding the Fourth Proportional to 754,515,355.60, 1,129,505,551.80 and 447,649,512.40

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Solution

The fourth proportional to 754,515,355.60, 1,129,505,551.80 and 447,649,512.40 is: 670,128,985.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,515,355.60 : 1,129,505,551.80 = 447,649,512.40 : x
  2. Step 2: Convert to fraction form
    754,515,355.60/1,129,505,551.80 = 447,649,512.40/x
  3. Step 3: Cross multiply
    754,515,355.60x = 1,129,505,551.80 × 447,649,512.40
  4. Step 4: Simplify right side
    754,515,355.60x = 505,622,609,516,362,880
  5. Step 5: Solve for x
    x = 505,622,609,516,362,880/754,515,355.60
  6. Step 6: Final answer
    x = 670,128,985.13

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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.