Home / 387,090,814.40-580,636,221.60-347,675,825.60

Finding the Fourth Proportional to 387,090,814.40, 580,636,221.60 and 347,675,825.60

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Solution

The fourth proportional to 387,090,814.40, 580,636,221.60 and 347,675,825.60 is: 521,513,738.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,090,814.40 : 580,636,221.60 = 347,675,825.60 : x
  2. Step 2: Convert to fraction form
    387,090,814.40/580,636,221.60 = 347,675,825.60/x
  3. Step 3: Cross multiply
    387,090,814.40x = 580,636,221.60 × 347,675,825.60
  4. Step 4: Simplify right side
    387,090,814.40x = 201,873,177,718,044,576
  5. Step 5: Solve for x
    x = 201,873,177,718,044,576/387,090,814.40
  6. Step 6: Final answer
    x = 521,513,738.40

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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.