Home / 129,437,491.28-178,622,676.44-70,700,194

Finding the Fourth Proportional to 129,437,491.28, 178,622,676.44 and 70,700,194

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Solution

The fourth proportional to 129,437,491.28, 178,622,676.44 and 70,700,194 is: 97,565,687.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,437,491.28 : 178,622,676.44 = 70,700,194 : x
  2. Step 2: Convert to fraction form
    129,437,491.28/178,622,676.44 = 70,700,194/x
  3. Step 3: Cross multiply
    129,437,491.28x = 178,622,676.44 × 70,700,194
  4. Step 4: Simplify right side
    129,437,491.28x = 12,628,657,877,107,230
  5. Step 5: Solve for x
    x = 12,628,657,877,107,230/129,437,491.28
  6. Step 6: Final answer
    x = 97,565,687.90

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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.