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Finding the Fourth Proportional to 86,565,860,139.80, 129,848,790,209.70 and 86,565,860,139.80

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Solution

The fourth proportional to 86,565,860,139.80, 129,848,790,209.70 and 86,565,860,139.80 is: 129,848,790,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,565,860,139.80 : 129,848,790,209.70 = 86,565,860,139.80 : x
  2. Step 2: Convert to fraction form
    86,565,860,139.80/129,848,790,209.70 = 86,565,860,139.80/x
  3. Step 3: Cross multiply
    86,565,860,139.80x = 129,848,790,209.70 × 86,565,860,139.80
  4. Step 4: Simplify right side
    86,565,860,139.80x = 11,240,472,212,615,121,076,224
  5. Step 5: Solve for x
    x = 11,240,472,212,615,121,076,224/86,565,860,139.80
  6. Step 6: Final answer
    x = 129,848,790,209.70

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1.5x scale

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.