Home / 689,604,001.60-1,034,403,280.80-204,929,809.60

Finding the Fourth Proportional to 689,604,001.60, 1,034,403,280.80 and 204,929,809.60

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Solution

The fourth proportional to 689,604,001.60, 1,034,403,280.80 and 204,929,809.60 is: 307,393,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,604,001.60 : 1,034,403,280.80 = 204,929,809.60 : x
  2. Step 2: Convert to fraction form
    689,604,001.60/1,034,403,280.80 = 204,929,809.60/x
  3. Step 3: Cross multiply
    689,604,001.60x = 1,034,403,280.80 × 204,929,809.60
  4. Step 4: Simplify right side
    689,604,001.60x = 211,980,067,383,959,328
  5. Step 5: Solve for x
    x = 211,980,067,383,959,328/689,604,001.60
  6. Step 6: Final answer
    x = 307,393,905.62

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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.