Home / 390,659,502.52-539,107,985.04-214,450,495.89

Finding the Fourth Proportional to 390,659,502.52, 539,107,985.04 and 214,450,495.89

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Solution

The fourth proportional to 390,659,502.52, 539,107,985.04 and 214,450,495.89 is: 295,940,515.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,659,502.52 : 539,107,985.04 = 214,450,495.89 : x
  2. Step 2: Convert to fraction form
    390,659,502.52/539,107,985.04 = 214,450,495.89/x
  3. Step 3: Cross multiply
    390,659,502.52x = 539,107,985.04 × 214,450,495.89
  4. Step 4: Simplify right side
    390,659,502.52x = 115,611,974,727,260,848
  5. Step 5: Solve for x
    x = 115,611,974,727,260,848/390,659,502.52
  6. Step 6: Final answer
    x = 295,940,515.93

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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.