Home / 430,970,780.60-646,456,179.45-103,446,293.69

Finding the Fourth Proportional to 430,970,780.60, 646,456,179.45 and 103,446,293.69

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Solution

The fourth proportional to 430,970,780.60, 646,456,179.45 and 103,446,293.69 is: 155,169,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,970,780.60 : 646,456,179.45 = 103,446,293.69 : x
  2. Step 2: Convert to fraction form
    430,970,780.60/646,456,179.45 = 103,446,293.69/x
  3. Step 3: Cross multiply
    430,970,780.60x = 646,456,179.45 × 103,446,293.69
  4. Step 4: Simplify right side
    430,970,780.60x = 66,873,495,797,100,048
  5. Step 5: Solve for x
    x = 66,873,495,797,100,048/430,970,780.60
  6. Step 6: Final answer
    x = 155,169,442.59

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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.