Home / 394,148,588.34-543,901,681.50-217,922,752.74

Finding the Fourth Proportional to 394,148,588.34, 543,901,681.50 and 217,922,752.74

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Solution

The fourth proportional to 394,148,588.34, 543,901,681.50 and 217,922,752.74 is: 300,720,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,148,588.34 : 543,901,681.50 = 217,922,752.74 : x
  2. Step 2: Convert to fraction form
    394,148,588.34/543,901,681.50 = 217,922,752.74/x
  3. Step 3: Cross multiply
    394,148,588.34x = 543,901,681.50 × 217,922,752.74
  4. Step 4: Simplify right side
    394,148,588.34x = 118,528,551,652,394,736
  5. Step 5: Solve for x
    x = 118,528,551,652,394,736/394,148,588.34
  6. Step 6: Final answer
    x = 300,720,477.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.