Home / 867,150,985.60-1,300,296,076.80-314,431,350.40

Finding the Fourth Proportional to 867,150,985.60, 1,300,296,076.80 and 314,431,350.40

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Solution

The fourth proportional to 867,150,985.60, 1,300,296,076.80 and 314,431,350.40 is: 471,490,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,150,985.60 : 1,300,296,076.80 = 314,431,350.40 : x
  2. Step 2: Convert to fraction form
    867,150,985.60/1,300,296,076.80 = 314,431,350.40/x
  3. Step 3: Cross multiply
    867,150,985.60x = 1,300,296,076.80 × 314,431,350.40
  4. Step 4: Simplify right side
    867,150,985.60x = 408,853,851,348,046,080
  5. Step 5: Solve for x
    x = 408,853,851,348,046,080/867,150,985.60
  6. Step 6: Final answer
    x = 471,490,960.79

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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.