Home / 668,889,299.60-1,003,333,949.40-424,001,286.80

Finding the Fourth Proportional to 668,889,299.60, 1,003,333,949.40 and 424,001,286.80

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Solution

The fourth proportional to 668,889,299.60, 1,003,333,949.40 and 424,001,286.80 is: 636,001,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889,299.60 : 1,003,333,949.40 = 424,001,286.80 : x
  2. Step 2: Convert to fraction form
    668,889,299.60/1,003,333,949.40 = 424,001,286.80/x
  3. Step 3: Cross multiply
    668,889,299.60x = 1,003,333,949.40 × 424,001,286.80
  4. Step 4: Simplify right side
    668,889,299.60x = 425,414,885,635,726,080
  5. Step 5: Solve for x
    x = 425,414,885,635,726,080/668,889,299.60
  6. Step 6: Final answer
    x = 636,001,930.20

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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.