Home / 898,128,530.80-1,347,192,796.20-511,145,004.40

Finding the Fourth Proportional to 898,128,530.80, 1,347,192,796.20 and 511,145,004.40

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Solution

The fourth proportional to 898,128,530.80, 1,347,192,796.20 and 511,145,004.40 is: 766,717,506.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,128,530.80 : 1,347,192,796.20 = 511,145,004.40 : x
  2. Step 2: Convert to fraction form
    898,128,530.80/1,347,192,796.20 = 511,145,004.40/x
  3. Step 3: Cross multiply
    898,128,530.80x = 1,347,192,796.20 × 511,145,004.40
  4. Step 4: Simplify right side
    898,128,530.80x = 688,610,867,741,297,280
  5. Step 5: Solve for x
    x = 688,610,867,741,297,280/898,128,530.80
  6. Step 6: Final answer
    x = 766,717,506.60

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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.