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Finding the Third Proportional to 85,319,792.75 and 128,876,332.50

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Solution

The third proportional to 85,319,792.75 and 128,876,332.50 is: 194,668,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,319,792.75 : 128,876,332.50 = 128,876,332.50 : x
  2. Step 2: Convert to fraction form
    85,319,792.75/128,876,332.50 = 128,876,332.50/x
  3. Step 3: Cross multiply
    85,319,792.75x = 128,876,332.50 × 128,876,332.50
  4. Step 4: Simplify right side
    85,319,792.75x = 16,609,109,078,650,556
  5. Step 5: Solve for x
    x = 16,609,109,078,650,556/85,319,792.75
  6. Step 6: Final answer
    x = 194,668,886.82

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.