Home / 415,287,998.40-622,931,997.60-347,767,435.20

Finding the Fourth Proportional to 415,287,998.40, 622,931,997.60 and 347,767,435.20

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Solution

The fourth proportional to 415,287,998.40, 622,931,997.60 and 347,767,435.20 is: 521,651,152.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,287,998.40 : 622,931,997.60 = 347,767,435.20 : x
  2. Step 2: Convert to fraction form
    415,287,998.40/622,931,997.60 = 347,767,435.20/x
  3. Step 3: Cross multiply
    415,287,998.40x = 622,931,997.60 × 347,767,435.20
  4. Step 4: Simplify right side
    415,287,998.40x = 216,635,463,109,364,544
  5. Step 5: Solve for x
    x = 216,635,463,109,364,544/415,287,998.40
  6. Step 6: Final answer
    x = 521,651,152.80

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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.