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Finding the Fourth Proportional to 187,215,580.80, 280,319,486.40 and 187,215,580.80

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Solution

The fourth proportional to 187,215,580.80, 280,319,486.40 and 187,215,580.80 is: 280,319,486.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,215,580.80 : 280,319,486.40 = 187,215,580.80 : x
  2. Step 2: Convert to fraction form
    187,215,580.80/280,319,486.40 = 187,215,580.80/x
  3. Step 3: Cross multiply
    187,215,580.80x = 280,319,486.40 × 187,215,580.80
  4. Step 4: Simplify right side
    187,215,580.80x = 52,480,175,455,933,696
  5. Step 5: Solve for x
    x = 52,480,175,455,933,696/187,215,580.80
  6. Step 6: Final answer
    x = 280,319,486.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.