Home / 387,072,605.40-580,608,908.10-347,657,616.60

Finding the Fourth Proportional to 387,072,605.40, 580,608,908.10 and 347,657,616.60

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Solution

The fourth proportional to 387,072,605.40, 580,608,908.10 and 347,657,616.60 is: 521,486,424.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,072,605.40 : 580,608,908.10 = 347,657,616.60 : x
  2. Step 2: Convert to fraction form
    387,072,605.40/580,608,908.10 = 347,657,616.60/x
  3. Step 3: Cross multiply
    387,072,605.40x = 580,608,908.10 × 347,657,616.60
  4. Step 4: Simplify right side
    387,072,605.40x = 201,853,109,166,774,464
  5. Step 5: Solve for x
    x = 201,853,109,166,774,464/387,072,605.40
  6. Step 6: Final answer
    x = 521,486,424.90

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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.