Home / 828,114,418.60-1,241,116,619.10-440,123,122.60

Finding the Fourth Proportional to 828,114,418.60, 1,241,116,619.10 and 440,123,122.60

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Solution

The fourth proportional to 828,114,418.60, 1,241,116,619.10 and 440,123,122.60 is: 659,623,971.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,114,418.60 : 1,241,116,619.10 = 440,123,122.60 : x
  2. Step 2: Convert to fraction form
    828,114,418.60/1,241,116,619.10 = 440,123,122.60/x
  3. Step 3: Cross multiply
    828,114,418.60x = 1,241,116,619.10 × 440,123,122.60
  4. Step 4: Simplify right side
    828,114,418.60x = 546,244,121,909,046,784
  5. Step 5: Solve for x
    x = 546,244,121,909,046,784/828,114,418.60
  6. Step 6: Final answer
    x = 659,623,971.81

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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.