Home / 278,270,320.47-384,162,129.72-214,551,492.54

Finding the Fourth Proportional to 278,270,320.47, 384,162,129.72 and 214,551,492.54

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Solution

The fourth proportional to 278,270,320.47, 384,162,129.72 and 214,551,492.54 is: 296,196,008.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,270,320.47 : 384,162,129.72 = 214,551,492.54 : x
  2. Step 2: Convert to fraction form
    278,270,320.47/384,162,129.72 = 214,551,492.54/x
  3. Step 3: Cross multiply
    278,270,320.47x = 384,162,129.72 × 214,551,492.54
  4. Step 4: Simplify right side
    278,270,320.47x = 82,422,558,308,771,088
  5. Step 5: Solve for x
    x = 82,422,558,308,771,088/278,270,320.47
  6. Step 6: Final answer
    x = 296,196,008.86

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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.