Home / 749,087,999.80-1,123,631,999.70-543,652,300.60

Finding the Fourth Proportional to 749,087,999.80, 1,123,631,999.70 and 543,652,300.60

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Solution

The fourth proportional to 749,087,999.80, 1,123,631,999.70 and 543,652,300.60 is: 815,478,450.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,087,999.80 : 1,123,631,999.70 = 543,652,300.60 : x
  2. Step 2: Convert to fraction form
    749,087,999.80/1,123,631,999.70 = 543,652,300.60/x
  3. Step 3: Cross multiply
    749,087,999.80x = 1,123,631,999.70 × 543,652,300.60
  4. Step 4: Simplify right side
    749,087,999.80x = 610,865,121,664,683,520
  5. Step 5: Solve for x
    x = 610,865,121,664,683,520/749,087,999.80
  6. Step 6: Final answer
    x = 815,478,450.90

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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.