Home / 668,889,321.60-1,003,333,982.40-424,001,308.80

Finding the Fourth Proportional to 668,889,321.60, 1,003,333,982.40 and 424,001,308.80

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Solution

The fourth proportional to 668,889,321.60, 1,003,333,982.40 and 424,001,308.80 is: 636,001,963.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,889,321.60 : 1,003,333,982.40 = 424,001,308.80 : x
  2. Step 2: Convert to fraction form
    668,889,321.60/1,003,333,982.40 = 424,001,308.80/x
  3. Step 3: Cross multiply
    668,889,321.60x = 1,003,333,982.40 × 424,001,308.80
  4. Step 4: Simplify right side
    668,889,321.60x = 425,414,921,701,116,160
  5. Step 5: Solve for x
    x = 425,414,921,701,116,160/668,889,321.60
  6. Step 6: Final answer
    x = 636,001,963.20

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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.