Home / 130,650,961,799.70-180,274,392,796.84-72,777,901,401.57

Finding the Fourth Proportional to 130,650,961,799.70, 180,274,392,796.84 and 72,777,901,401.57

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Solution

The fourth proportional to 130,650,961,799.70, 180,274,392,796.84 and 72,777,901,401.57 is: 100,420,171,451.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,650,961,799.70 : 180,274,392,796.84 = 72,777,901,401.57 : x
  2. Step 2: Convert to fraction form
    130,650,961,799.70/180,274,392,796.84 = 72,777,901,401.57/x
  3. Step 3: Cross multiply
    130,650,961,799.70x = 180,274,392,796.84 × 72,777,901,401.57
  4. Step 4: Simplify right side
    130,650,961,799.70x = 13,119,991,984,196,323,115,008
  5. Step 5: Solve for x
    x = 13,119,991,984,196,323,115,008/130,650,961,799.70
  6. Step 6: Final answer
    x = 100,420,171,451.25

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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.