Home / 129,727,122.92-179,023,447.32-70,989,802.04

Finding the Fourth Proportional to 129,727,122.92, 179,023,447.32 and 70,989,802.04

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Solution

The fourth proportional to 129,727,122.92, 179,023,447.32 and 70,989,802.04 is: 97,965,936.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,727,122.92 : 179,023,447.32 = 70,989,802.04 : x
  2. Step 2: Convert to fraction form
    129,727,122.92/179,023,447.32 = 70,989,802.04/x
  3. Step 3: Cross multiply
    129,727,122.92x = 179,023,447.32 × 70,989,802.04
  4. Step 4: Simplify right side
    129,727,122.92x = 12,708,839,085,765,170
  5. Step 5: Solve for x
    x = 12,708,839,085,765,170/129,727,122.92
  6. Step 6: Final answer
    x = 97,965,936.50

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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.