Home / 623,900,622.21-861,009,761.40-345,442,170.36

Finding the Fourth Proportional to 623,900,622.21, 861,009,761.40 and 345,442,170.36

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Solution

The fourth proportional to 623,900,622.21, 861,009,761.40 and 345,442,170.36 is: 476,725,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,900,622.21 : 861,009,761.40 = 345,442,170.36 : x
  2. Step 2: Convert to fraction form
    623,900,622.21/861,009,761.40 = 345,442,170.36/x
  3. Step 3: Cross multiply
    623,900,622.21x = 861,009,761.40 × 345,442,170.36
  4. Step 4: Simplify right side
    623,900,622.21x = 297,429,080,679,161,728
  5. Step 5: Solve for x
    x = 297,429,080,679,161,728/623,900,622.21
  6. Step 6: Final answer
    x = 476,725,090.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.