Home / 402,930,877.86-604,519,664.61-206,333,489.40

Finding the Fourth Proportional to 402,930,877.86, 604,519,664.61 and 206,333,489.40

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Solution

The fourth proportional to 402,930,877.86, 604,519,664.61 and 206,333,489.40 is: 309,563,398.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,930,877.86 : 604,519,664.61 = 206,333,489.40 : x
  2. Step 2: Convert to fraction form
    402,930,877.86/604,519,664.61 = 206,333,489.40/x
  3. Step 3: Cross multiply
    402,930,877.86x = 604,519,664.61 × 206,333,489.40
  4. Step 4: Simplify right side
    402,930,877.86x = 124,732,651,809,898,992
  5. Step 5: Solve for x
    x = 124,732,651,809,898,992/402,930,877.86
  6. Step 6: Final answer
    x = 309,563,398.25

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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.