Home / 380,288,542.90-570,432,814.35-354,590,418.10

Finding the Fourth Proportional to 380,288,542.90, 570,432,814.35 and 354,590,418.10

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Solution

The fourth proportional to 380,288,542.90, 570,432,814.35 and 354,590,418.10 is: 531,885,627.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,288,542.90 : 570,432,814.35 = 354,590,418.10 : x
  2. Step 2: Convert to fraction form
    380,288,542.90/570,432,814.35 = 354,590,418.10/x
  3. Step 3: Cross multiply
    380,288,542.90x = 570,432,814.35 × 354,590,418.10
  4. Step 4: Simplify right side
    380,288,542.90x = 202,270,010,138,326,208
  5. Step 5: Solve for x
    x = 202,270,010,138,326,208/380,288,542.90
  6. Step 6: Final answer
    x = 531,885,627.15

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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.