Home / 128,042,905.38-176,699,218.06-70,096,153.38

Finding the Fourth Proportional to 128,042,905.38, 176,699,218.06 and 70,096,153.38

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Solution

The fourth proportional to 128,042,905.38, 176,699,218.06 and 70,096,153.38 is: 96,732,696.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,042,905.38 : 176,699,218.06 = 70,096,153.38 : x
  2. Step 2: Convert to fraction form
    128,042,905.38/176,699,218.06 = 70,096,153.38/x
  3. Step 3: Cross multiply
    128,042,905.38x = 176,699,218.06 × 70,096,153.38
  4. Step 4: Simplify right side
    128,042,905.38x = 12,385,935,491,259,826
  5. Step 5: Solve for x
    x = 12,385,935,491,259,826/128,042,905.38
  6. Step 6: Final answer
    x = 96,732,696.39

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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.