Home / 689,603,999.60-1,034,403,277.80-204,929,807.60

Finding the Fourth Proportional to 689,603,999.60, 1,034,403,277.80 and 204,929,807.60

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Solution

The fourth proportional to 689,603,999.60, 1,034,403,277.80 and 204,929,807.60 is: 307,393,902.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,603,999.60 : 1,034,403,277.80 = 204,929,807.60 : x
  2. Step 2: Convert to fraction form
    689,603,999.60/1,034,403,277.80 = 204,929,807.60/x
  3. Step 3: Cross multiply
    689,603,999.60x = 1,034,403,277.80 × 204,929,807.60
  4. Step 4: Simplify right side
    689,603,999.60x = 211,980,064,700,363,328
  5. Step 5: Solve for x
    x = 211,980,064,700,363,328/689,603,999.60
  6. Step 6: Final answer
    x = 307,393,902.62

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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.