Home / 380,288,539.40-570,432,809.10-354,590,414.60

Finding the Fourth Proportional to 380,288,539.40, 570,432,809.10 and 354,590,414.60

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Solution

The fourth proportional to 380,288,539.40, 570,432,809.10 and 354,590,414.60 is: 531,885,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,288,539.40 : 570,432,809.10 = 354,590,414.60 : x
  2. Step 2: Convert to fraction form
    380,288,539.40/570,432,809.10 = 354,590,414.60/x
  3. Step 3: Cross multiply
    380,288,539.40x = 570,432,809.10 × 354,590,414.60
  4. Step 4: Simplify right side
    380,288,539.40x = 202,270,006,280,211,680
  5. Step 5: Solve for x
    x = 202,270,006,280,211,680/380,288,539.40
  6. Step 6: Final answer
    x = 531,885,621.90

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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.