Home / 919,321,202.40-1,378,981,803.60-575,335,845.60

Finding the Fourth Proportional to 919,321,202.40, 1,378,981,803.60 and 575,335,845.60

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Solution

The fourth proportional to 919,321,202.40, 1,378,981,803.60 and 575,335,845.60 is: 863,003,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,321,202.40 : 1,378,981,803.60 = 575,335,845.60 : x
  2. Step 2: Convert to fraction form
    919,321,202.40/1,378,981,803.60 = 575,335,845.60/x
  3. Step 3: Cross multiply
    919,321,202.40x = 1,378,981,803.60 × 575,335,845.60
  4. Step 4: Simplify right side
    919,321,202.40x = 793,377,662,041,219,072
  5. Step 5: Solve for x
    x = 793,377,662,041,219,072/919,321,202.40
  6. Step 6: Final answer
    x = 863,003,768.40

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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.