Home / 393,677,628.13-543,264,601.34-217,461,830.86

Finding the Fourth Proportional to 393,677,628.13, 543,264,601.34 and 217,461,830.86

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Solution

The fourth proportional to 393,677,628.13, 543,264,601.34 and 217,461,830.86 is: 300,091,512.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,677,628.13 : 543,264,601.34 = 217,461,830.86 : x
  2. Step 2: Convert to fraction form
    393,677,628.13/543,264,601.34 = 217,461,830.86/x
  3. Step 3: Cross multiply
    393,677,628.13x = 543,264,601.34 × 217,461,830.86
  4. Step 4: Simplify right side
    393,677,628.13x = 118,139,314,848,822,832
  5. Step 5: Solve for x
    x = 118,139,314,848,822,832/393,677,628.13
  6. Step 6: Final answer
    x = 300,091,512.46

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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.