Home / 129,729,076.68-179,026,137.36-70,991,738.76

Finding the Fourth Proportional to 129,729,076.68, 179,026,137.36 and 70,991,738.76

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Solution

The fourth proportional to 129,729,076.68, 179,026,137.36 and 70,991,738.76 is: 97,968,605.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,729,076.68 : 179,026,137.36 = 70,991,738.76 : x
  2. Step 2: Convert to fraction form
    129,729,076.68/179,026,137.36 = 70,991,738.76/x
  3. Step 3: Cross multiply
    129,729,076.68x = 179,026,137.36 × 70,991,738.76
  4. Step 4: Simplify right side
    129,729,076.68x = 12,709,376,774,672,998
  5. Step 5: Solve for x
    x = 12,709,376,774,672,998/129,729,076.68
  6. Step 6: Final answer
    x = 97,968,605.80

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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.