Home / 191,836,515.23-287,631,053.78-75,263,652.59

Finding the Fourth Proportional to 191,836,515.23, 287,631,053.78 and 75,263,652.59

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Solution

The fourth proportional to 191,836,515.23, 287,631,053.78 and 75,263,652.59 is: 112,846,939.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,836,515.23 : 287,631,053.78 = 75,263,652.59 : x
  2. Step 2: Convert to fraction form
    191,836,515.23/287,631,053.78 = 75,263,652.59/x
  3. Step 3: Cross multiply
    191,836,515.23x = 287,631,053.78 × 75,263,652.59
  4. Step 4: Simplify right side
    191,836,515.23x = 21,648,163,703,979,048
  5. Step 5: Solve for x
    x = 21,648,163,703,979,048/191,836,515.23
  6. Step 6: Final answer
    x = 112,846,939.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.