Home / 388,098,152.28-535,567,265.96-211,877,631.09

Finding the Fourth Proportional to 388,098,152.28, 535,567,265.96 and 211,877,631.09

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Solution

The fourth proportional to 388,098,152.28, 535,567,265.96 and 211,877,631.09 is: 292,386,662.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,098,152.28 : 535,567,265.96 = 211,877,631.09 : x
  2. Step 2: Convert to fraction form
    388,098,152.28/535,567,265.96 = 211,877,631.09/x
  3. Step 3: Cross multiply
    388,098,152.28x = 535,567,265.96 × 211,877,631.09
  4. Step 4: Simplify right side
    388,098,152.28x = 113,474,723,599,893,408
  5. Step 5: Solve for x
    x = 113,474,723,599,893,408/388,098,152.28
  6. Step 6: Final answer
    x = 292,386,662.84

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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.