Home / 127,457,753,822.21-175,971,094,879.84-81,134,328,019.01

Finding the Fourth Proportional to 127,457,753,822.21, 175,971,094,879.84 and 81,134,328,019.01

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Solution

The fourth proportional to 127,457,753,822.21, 175,971,094,879.84 and 81,134,328,019.01 is: 112,015,911,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,457,753,822.21 : 175,971,094,879.84 = 81,134,328,019.01 : x
  2. Step 2: Convert to fraction form
    127,457,753,822.21/175,971,094,879.84 = 81,134,328,019.01/x
  3. Step 3: Cross multiply
    127,457,753,822.21x = 175,971,094,879.84 × 81,134,328,019.01
  4. Step 4: Simplify right side
    127,457,753,822.21x = 14,277,296,533,844,390,838,272
  5. Step 5: Solve for x
    x = 14,277,296,533,844,390,838,272/127,457,753,822.21
  6. Step 6: Final answer
    x = 112,015,911,984.14

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1.5x scale

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.