Home / 387,328,014.40-580,992,021.60-357,766,772.80

Finding the Fourth Proportional to 387,328,014.40, 580,992,021.60 and 357,766,772.80

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Solution

The fourth proportional to 387,328,014.40, 580,992,021.60 and 357,766,772.80 is: 536,650,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,328,014.40 : 580,992,021.60 = 357,766,772.80 : x
  2. Step 2: Convert to fraction form
    387,328,014.40/580,992,021.60 = 357,766,772.80/x
  3. Step 3: Cross multiply
    387,328,014.40x = 580,992,021.60 × 357,766,772.80
  4. Step 4: Simplify right side
    387,328,014.40x = 207,859,640,590,379,904
  5. Step 5: Solve for x
    x = 207,859,640,590,379,904/387,328,014.40
  6. Step 6: Final answer
    x = 536,650,159.20

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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.