Home / 387,095,999.40-580,643,999.10-347,681,010.60

Finding the Fourth Proportional to 387,095,999.40, 580,643,999.10 and 347,681,010.60

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Solution

The fourth proportional to 387,095,999.40, 580,643,999.10 and 347,681,010.60 is: 521,521,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,095,999.40 : 580,643,999.10 = 347,681,010.60 : x
  2. Step 2: Convert to fraction form
    387,095,999.40/580,643,999.10 = 347,681,010.60/x
  3. Step 3: Cross multiply
    387,095,999.40x = 580,643,999.10 × 347,681,010.60
  4. Step 4: Simplify right side
    387,095,999.40x = 201,878,892,405,913,504
  5. Step 5: Solve for x
    x = 201,878,892,405,913,504/387,095,999.40
  6. Step 6: Final answer
    x = 521,521,515.90

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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.