Home / 129,669,819.66-178,945,770.90-70,932,485.35

Finding the Fourth Proportional to 129,669,819.66, 178,945,770.90 and 70,932,485.35

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Solution

The fourth proportional to 129,669,819.66, 178,945,770.90 and 70,932,485.35 is: 97,887,606.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,669,819.66 : 178,945,770.90 = 70,932,485.35 : x
  2. Step 2: Convert to fraction form
    129,669,819.66/178,945,770.90 = 70,932,485.35/x
  3. Step 3: Cross multiply
    129,669,819.66x = 178,945,770.90 × 70,932,485.35
  4. Step 4: Simplify right side
    129,669,819.66x = 12,693,068,272,808,706
  5. Step 5: Solve for x
    x = 12,693,068,272,808,706/129,669,819.66
  6. Step 6: Final answer
    x = 97,887,606.43

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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.