Home / 386,903,003.14-533,926,177.95-210,690,945.82

Finding the Fourth Proportional to 386,903,003.14, 533,926,177.95 and 210,690,945.82

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Solution

The fourth proportional to 386,903,003.14, 533,926,177.95 and 210,690,945.82 is: 290,753,523.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,903,003.14 : 533,926,177.95 = 210,690,945.82 : x
  2. Step 2: Convert to fraction form
    386,903,003.14/533,926,177.95 = 210,690,945.82/x
  3. Step 3: Cross multiply
    386,903,003.14x = 533,926,177.95 × 210,690,945.82
  4. Step 4: Simplify right side
    386,903,003.14x = 112,493,411,430,343,120
  5. Step 5: Solve for x
    x = 112,493,411,430,343,120/386,903,003.14
  6. Step 6: Final answer
    x = 290,753,523.54

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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.