Home / 127,457,753,821.81-175,971,094,879.28-81,134,328,018.60

Finding the Fourth Proportional to 127,457,753,821.81, 175,971,094,879.28 and 81,134,328,018.60

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Solution

The fourth proportional to 127,457,753,821.81, 175,971,094,879.28 and 81,134,328,018.60 is: 112,015,911,983.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,457,753,821.81 : 175,971,094,879.28 = 81,134,328,018.60 : x
  2. Step 2: Convert to fraction form
    127,457,753,821.81/175,971,094,879.28 = 81,134,328,018.60/x
  3. Step 3: Cross multiply
    127,457,753,821.81x = 175,971,094,879.28 × 81,134,328,018.60
  4. Step 4: Simplify right side
    127,457,753,821.81x = 14,277,296,533,727,686,426,624
  5. Step 5: Solve for x
    x = 14,277,296,533,727,686,426,624/127,457,753,821.81
  6. Step 6: Final answer
    x = 112,015,911,983.57

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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.