Home / 287,260,046.10-430,890,069.15-199,584,090.90

Finding the Fourth Proportional to 287,260,046.10, 430,890,069.15 and 199,584,090.90

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Solution

The fourth proportional to 287,260,046.10, 430,890,069.15 and 199,584,090.90 is: 299,376,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,260,046.10 : 430,890,069.15 = 199,584,090.90 : x
  2. Step 2: Convert to fraction form
    287,260,046.10/430,890,069.15 = 199,584,090.90/x
  3. Step 3: Cross multiply
    287,260,046.10x = 430,890,069.15 × 199,584,090.90
  4. Step 4: Simplify right side
    287,260,046.10x = 85,998,802,729,140,880
  5. Step 5: Solve for x
    x = 85,998,802,729,140,880/287,260,046.10
  6. Step 6: Final answer
    x = 299,376,136.35

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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.